# Mailtrap

> Modern email delivery for developers and product teams


## Posts

- [I Tested 6 Postmark Alternatives: Here’s What I Found](https://mailtrap.io/blog/postmark-alternatives/)
- [SMTP Providers Security Comparison: Which Service Offers the Best Security?](https://mailtrap.io/blog/smtp-providers-security-comparison/)
- [Improve Email Deliverability: Here’s How & Best Practices to Follow](https://mailtrap.io/blog/how-to-improve-email-deliverability/)
- [PHPMailer-Guide: Konfiguration, SMTP-Einrichtung und E-Mail-Versand](https://mailtrap.io/de/blog/phpmailer/)
- [So senden Sie E-Mails in Python: SMTP- & E-Mail-API-Methoden erklärt](https://mailtrap.io/de/blog/python-send-email/)
- [So senden Sie E-Mails mit Telnet](https://mailtrap.io/de/blog/telnet-send-email/)
- [So senden Sie E-Mails in Python mit Gmail SMTP und API](https://mailtrap.io/de/blog/python-send-email-gmail/)
- [E-Mail-Marketing für Anfänger: Ein vollständiger Leitfaden von den Grundlagen bis zu den Best Practices](https://mailtrap.io/de/blog/email-marketing/)
- [E-Mails in PHP senden mit SMTP oder API: PHPMailer, Symfony Mailer und die mail()-Funktion](https://mailtrap.io/de/blog/php-email-sending/)
- [What is Email Marketing Customer Journey and How to Create a Customer Journey Map](https://mailtrap.io/blog/email-marketing-customer-journey/)
- [7 Proven Email Marketing Optimization Strategies](https://mailtrap.io/blog/email-marketing-optimization/)
- [10 Tried-and-Tested Email Marketing Examples That Convert (+1 Smart Bonus)](https://mailtrap.io/blog/email-marketing-examples/)
- [Office 365 SMTP: Einrichtung und Konfiguration erklärt](https://mailtrap.io/de/blog/office-365-smtp/)
- [Detaillierte Anleitung zur SMTP-Einrichtung und -Konfiguration von Gmail](https://mailtrap.io/de/blog/gmail-smtp/)
- [6 Best Email API Services For Developers Tested & Compared: Here’s What I Found](https://mailtrap.io/blog/best-email-api/)
- [SMTP vs Email API Explained & Compared: Find Out What Method Developers Should Use](https://mailtrap.io/blog/smtp-vs-email-api/)
- [8 Best Marketing Tips: Personal Insights for Improving Email Campaigns](https://mailtrap.io/blog/email-marketing-tips/)
- [Choosing the Best SMTP Providers - Top 5 SMTP Providers Compliance Comparison](https://mailtrap.io/blog/smtp-providers-compliance-comparison/)
- [I Compared 5 Best SMTP Providers for FinTech Companies: Which One Should You Use](https://mailtrap.io/blog/smtp-providers-for-fintech/)
- [What is an Email API?](https://mailtrap.io/blog/what-is-an-email-api/)
- [How to Send Emails with Email API: Practical Examples in Popular Languages and Frameworks](https://mailtrap.io/blog/api-send-email/)
- [Send Emails in Django: A Developer’s Tutorial to SMTP & Email API Methods](https://mailtrap.io/blog/django-send-email/)
- [Ich habe 6 SendGrid-Alternativen getestet: Hier sind meine Ergebnisse](https://mailtrap.io/de/blog/sendgrid-alternative/)
- [Which Email API Offers The Most Flexibility: In-Depth Comparison of Best Providers](https://mailtrap.io/blog/email-api-flexibility/)
- [Email Deliverability Audit: A Step-by-Step Guide](https://mailtrap.io/blog/email-deliverability-audit/)
- [Microsoft SNDS: Learn How to Improve Outlook Email Deliverability](https://mailtrap.io/blog/microsoft-snds/)
- [EmailJS React: How to Send Emails From a Contact Form Without a Backend](https://mailtrap.io/blog/emailjs-react/)
- [ESP Migration Guide for SaaS and Product-Based Companies](https://mailtrap.io/blog/esp-migration/)
- [How to Creat Email Marketing Strategy & An Overview of Ready-to-Use Strategies](https://mailtrap.io/blog/email-marketing-strategy/)
- [Google Postmaster Tools: Learn How To Improve Gmail Email Deliverability](https://mailtrap.io/blog/google-postmaster-tools/)
- [How to Send Emails Client-Side: A Developer’s Tutorial to EmailJS](https://mailtrap.io/blog/emailjs/)
- [I Tested 15 Email Deliverability Tools: Here’s What You Should Use](https://mailtrap.io/blog/email-deliverability-tools/)
- [What Are Email IP Pools and Why Should You Use Them for Higher Email Deliverability](https://mailtrap.io/blog/email-ip-pools/)
- [Email Deliverability Explained: Everything You Need to Know](https://mailtrap.io/blog/email-deliverability/)
- [B2B Email Marketing: A Go-to Guide for Businesses](https://mailtrap.io/blog/b2b-email-marketing/)
- [I’ve Tested 6 Email List Building Tools And Here’s What I Found](https://mailtrap.io/blog/email-list-building-tools/)
- [Beyond the Basics: A Practical Review of 5 Email List Management Solutions](https://mailtrap.io/blog/email-list-management-tools/)
- [What Is an Email List and How to Build One Right](https://mailtrap.io/blog/email-list/)
- [Email List Cleaning: Personal Insights On Ensuring High Email Deliverability](https://mailtrap.io/blog/clean-email-list/)
- [6 Subject Line Testers Tried & Compared: Here’s What I Found](https://mailtrap.io/blog/email-subject-line-testers/)
- [PythonでGmailのSMTPとAPIを使ってメールを送る方法](https://mailtrap.io/ja/blog/python-send-email-gmail/)
- [Email Header Design Tips, Examples, and Tools for 2025](https://mailtrap.io/blog/email-header-design/)
- [7 Mass Email Services Reviewed & Compared: Here’s What I Found](https://mailtrap.io/blog/mass-email-service-providers/)
- [J'ai Testé 6 Alternatives à SendGrid : Voici Mes Conclusions](https://mailtrap.io/fr/blog/sendgrid-alternative/)
- [How to Do Email Marketing for Dentists](https://mailtrap.io/blog/email-marketing-for-dentists/)
- [Email Marketing for E-Commerce: A Beginner's Guide](https://mailtrap.io/blog/ecommerce-email-marketing/)
- [Email List Growth Explained: Here’s 10 Steps You Have to Take](https://mailtrap.io/blog/email-list-growth/)
- [Die 6 besten E-Mail-Marketing-Plattformen im Vergleich: Finden Sie Ihren Favorit](https://mailtrap.io/de/blog/email-marketing-platforms/)
- [Email Marketing para Principiantes: Una Guía Completa desde lo Básico hasta las Mejores Prácticas](https://mailtrap.io/es/blog/email-marketing/)
- [【初心者でも分かるメールマーケティング】 基礎からベストプラクティスまでを網羅する完全ガイド](https://mailtrap.io/ja/blog/email-marketing/)
- [How to Send Emails in a Lovable React App Using EmailJS](https://mailtrap.io/blog/lovable-send-email/)
- [Ich habe 7 transaktionale E-Mail-Dienste verglichen: Hier sind meine Ergebnisse](https://mailtrap.io/de/blog/transactional-email-services/)
- [How to Send Emails in a Replit App](https://mailtrap.io/blog/replit-send-email/)
- [How to Choose Email Service Provider: Actionable Q&A Guide](https://mailtrap.io/blog/how-to-choose-email-service-provider/)
- [Office 365 SMTP : Configuration et Paramétrage Expliqués](https://mailtrap.io/fr/blog/office-365-smtp/)
- [Comparaison des 6 Meilleures Plateformes d'Email Marketing : Découvrez Votre Choix de Prédilection](https://mailtrap.io/fr/blog/email-marketing-platforms/)
- [Testei 6 Alternativas ao SendGrid: Eis o que Descobri](https://mailtrap.io/pt/blog/sendgrid-alternative/)
- [How to Send Emails in Next.js using Client & Server-Side Methods: A Complete Guide](https://mailtrap.io/blog/nextjs-send-email/)
- [Ho messo a confronto 7 servizi di email transazionali: ecco cosa ho scoperto](https://mailtrap.io/it/blog/transactional-email-services/)
- [Ho testato 6 alternative a SendGrid: ecco cosa ho scoperto](https://mailtrap.io/it/blog/sendgrid-alternative/)
- [Le 6 migliori piattaforme di email marketing a confronto: Scopri qual è la migliore per te](https://mailtrap.io/it/blog/email-marketing-platforms/)
- [J'ai Comparé 7 Services d'Email Transactionnel : Voici Mes Conclusions](https://mailtrap.io/fr/blog/transactional-email-services/)
- [As 6 Melhores Plataformas de Email Marketing Comparadas: Descubra Sua Opção Preferida](https://mailtrap.io/pt/blog/email-marketing-platforms/)
- [My Flask Email Verification Flow: How I Verify Emails Step-by-Step](https://mailtrap.io/blog/flask-email-verification/)
- [He Probado 6 Alternativas a SendGrid: Esto es lo que Encontré](https://mailtrap.io/es/blog/sendgrid-alternative/)
- [How to Send Emails from Supabase using SMTP or Email API](https://mailtrap.io/blog/supabase-send-email/)
- [How to Send Emails in Bolt.new with a React App Using EmailJS](https://mailtrap.io/blog/bolt-new-send-email/)
- [How to Send Emails in Retool](https://mailtrap.io/blog/retool-send-email/)
- [13 Reasons & Solutions for Why Your Emails Are Going to Spam](https://mailtrap.io/blog/why-are-my-emails-going-to-spam/)
- [I Tried & Compared 6 Best Mailgun Alternatives: My Findings](https://mailtrap.io/blog/mailgun-alternatives/)
- [I Tested 6 SendGrid Alternatives: Here’s What I Found](https://mailtrap.io/blog/sendgrid-alternative/)
- [7 Best SMTP Services for Email Marketing ](https://mailtrap.io/blog/best-smtp-service-for-email-marketing/)
- [I Compared 7 Best Transactional Email Services: Here’s What I Found](https://mailtrap.io/blog/transactional-email-services/)
- [Free SMTP Servers Compared: Choose the Best One for Sending Transactional and Marketing Emails](https://mailtrap.io/blog/free-smtp-servers/)
- [SMTP Providers Compared: Choose the Best One for Sending Transactional and Marketing Emails](https://mailtrap.io/blog/smtp-providers/)
- [How to Send Emails from Netlify using SMTP or email API](https://mailtrap.io/blog/netlify-send-email/)
- [SendGridの代替ツール6選を検証してみて分かったこと](https://mailtrap.io/ja/blog/sendgrid-alternative/)
- [【解説記事】OutlookでSMTPを利用する場合の設定・構成・デバッグチュートリアル](https://mailtrap.io/ja/blog/outlook-smtp/)
- [Las 6 Mejores Plataformas de Email Marketing Comparadas: Descubra Su Opción Favorita](https://mailtrap.io/es/blog/email-marketing-platforms/)
- [How to Send Emails in Claude Desktop with Mailtrap MCP](https://mailtrap.io/blog/claude-desktop-send-email/)
- [Let Your AI Agent Send Emails: Mailtrap MCP Server is Now Live!](https://mailtrap.io/blog/mcp-server-launch/)
- [Outlook’s New High-Volume Sender Requirements Update: What’s Changed?](https://mailtrap.io/blog/outlook-new-email-sender-requirements/)
- [Shared vs. Dedicated IP: Role, Impact, and Use Cases in Email Sending](https://mailtrap.io/blog/shared-vs-dedicated-ip/)
- [How to Send Emails in VS Code with Mailtrap MCP Server](https://mailtrap.io/blog/vs-code-send-email/)
- [最強メールマーケティングプラットフォーム6選の比較検証: あなたにぴったりのツールを見つけてみよう](https://mailtrap.io/ja/blog/email-marketing-platforms/)
- [How to Send Emails in Cursor with Mailtrap MCP Server](https://mailtrap.io/blog/cursor-send-email/)
- [How to Send Emails in Bubble.io Using Email API](https://mailtrap.io/blog/bubble-io-send-email/)
- [6 B2B E-Mail-Marketing Software-Lösungen im Test und Vergleich: Finden Sie die beste Lösung für Ihr Unternehmen](https://mailtrap.io/de/blog/b2b-email-marketing-software/)
- [Die 7 besten kostenlosen E-Mail-Marketing-Plattformen im Vergleich: Finden Sie heraus, welche Sie ausprobieren sollten](https://mailtrap.io/de/blog/free-email-marketing-platforms/)
- [Comparé 7 Servicios de Email Transaccional: Esto es lo que Descubrí](https://mailtrap.io/es/blog/transactional-email-services/)
- [徹底比較検証: 優良なトランザクションメールサービス7選](https://mailtrap.io/ja/blog/transactional-email-services/)
- [徹底比較: 優良なB2Bメールマーケティングソフトウェア6選! あなたのビジネスにぴったりなツールを解説](https://mailtrap.io/ja/blog/b2b-email-marketing-software/)
- [10 Win Back Customer Email Templates to Draw Back Customers](https://mailtrap.io/blog/win-back-customer-email-templates/)
- [5 Customer Retention Email Templates that Drive Results ](https://mailtrap.io/blog/customer-retention-email-template/)
- [I Tested 6 Cheap Email Marketing Platforms for Best Price/Value: Here's What I Found](https://mailtrap.io/blog/cheap-email-marketing-platforms/)
- [How to Send Emails in Vercel Next.js App using Nodemailer and SMTP](https://mailtrap.io/blog/vercel-send-email/)
- [Responsive Email Design: How to Create a Responsive Email Template Step by Step](https://mailtrap.io/blog/responsive-email-design/)
- [Pythonでメール送信: SMTPとAPIの使い方を徹底解説](https://mailtrap.io/ja/blog/python-send-email/)
- [How to Send Emails via TypeScript: Client-Side and Server-Side Methods Explained](https://mailtrap.io/blog/typescript-send-email/)
- [Email Marketing For Restaurants: Tips and Best Practices](https://mailtrap.io/blog/email-marketing-for-restaurants/)
- [Best Email Service Providers (ESPs) & Email Services: Tested & Reviewed](https://mailtrap.io/blog/email-service-providers/)
- [8 Best Drip Email Campaign Software](https://mailtrap.io/blog/drip-email-campaign-software/)
- [11 Review Email Templates to Gather Feedback from Customers](https://mailtrap.io/blog/review-email-templates/)
- [Product Launch Email Template](https://mailtrap.io/blog/product-launch-email-template/)
- [Email Marketing Audit: A Go-To Guide For Marketers ](https://mailtrap.io/blog/email-marketing-audit/)
- [How to Test Email Deliverability: Process & Toolkit Explained](https://mailtrap.io/blog/test-email-deliverability/)
- [How To Use Video In Email Marketing: Explanations And Tips](https://mailtrap.io/blog/video-in-email-marketing/)
- [Email Marketing Checklist: Pre-Send Essentials & Full Campaign Prep](https://mailtrap.io/blog/email-marketing-checklist/)
- [How to Send Emails in Java using SMTP and email API: A Step-by-Step Guide](https://mailtrap.io/blog/java-send-email/)
- [Abbiamo provato, testato e messo a confronto 6 software di Email Marketing B2B: scopri la scelta migliore per la tua azienda](https://mailtrap.io/it/blog/b2b-email-marketing-software/)
- [無料のメールマーケティングプラットフォーム7選の徹底比較！](https://mailtrap.io/ja/blog/free-email-marketing-platforms/)
- [I 7 migliori servizi di email marketing gratuiti a confronto: quale dovresti provare](https://mailtrap.io/it/blog/free-email-marketing-platforms/)
- [6 Softwares de Email Marketing B2B Probados y Comparados: Descubra la Mejor Opción para Su Empresa](https://mailtrap.io/es/blog/b2b-email-marketing-software/)
- [Guide to smtplib: Configuration, Setup, and Email Sending](https://mailtrap.io/blog/smtplib/)
- [AI Email Personalization: Examples, Benefits, and Best Practices](https://mailtrap.io/blog/ai-email-personalization/)
- [Mail Merge With Word: A Beginner’s Guide  ](https://mailtrap.io/blog/mail-merge-word/)
- [6 logiciels d'email marketing B2B testés et comparés : Découvrez le meilleur choix pour votre entreprise](https://mailtrap.io/fr/blog/b2b-email-marketing-software/)
- [What is a Spam Trap: Guide for Email Marketers and Software Developers](https://mailtrap.io/blog/spam-traps/)
- [7 Mejores Plataformas Gratuitas de Email Marketing Comparadas: Descubre Cuál Debería Probar](https://mailtrap.io/es/blog/free-email-marketing-platforms/)
- [Comparaison des 7 Meilleures Plateformes d’Email Marketing Gratuites : Découvrez Laquelle Vous Devriez Essayer](https://mailtrap.io/fr/blog/free-email-marketing-platforms/)
- [What is an ESP or Email Service Provider? A Beginner’s Guide](https://mailtrap.io/blog/what-is-an-esp-email-service-provider/)
- [5 Email Marketing Mistakes to Know Before You Begin](https://mailtrap.io/blog/email-marketing-mistakes/)
- [Comparei os 7 Melhores Serviços de Email Transacional: Veja o Que Descobri](https://mailtrap.io/pt/blog/transactional-email-services/)
- [As 7 Melhores Plataformas Gratuitas de Email Marketing Comparadas: Descubra Qual Você Deve Experimentar](https://mailtrap.io/pt/blog/free-email-marketing-platforms/)
- [Tutorial de HTML: Enviar Emails desde un Formulario HTML](https://mailtrap.io/es/blog/html-form-send-email/)
- [Spam Email List: Complete Guide for Business Owners & Email Marketers](https://mailtrap.io/blog/spam-email-list/)
- [6 Softwares de Email Marketing B2B Testadas e Comparadas: Descubra a Melhor Opção para sua Empresa](https://mailtrap.io/pt/blog/b2b-email-marketing-software/)
- [How to Validate Email Address in Go: Developer’s Tutorial](https://mailtrap.io/blog/go-email-validation/)
- [Cómo Enviar Emails con Telnet](https://mailtrap.io/es/blog/telnet-send-email/)
- [無料SMTPサーバー比較：トランザクションおよびマーケティングメールの送信に最適なサーバーを選びましょう](https://mailtrap.io/ja/blog/free-smtp-servers/)
- [Comparando Servidores SMTP Gratis: Elige el Mejor para Enviar Emails Transaccionales y de Marketing](https://mailtrap.io/es/blog/free-smtp-servers/)
- [Confronto dei server SMTP gratuiti: scegli il migliore per inviare email transazionali e di marketing](https://mailtrap.io/it/blog/free-smtp-servers/)
- [Servidores SMTP Grátis Comparados: Escolha o Melhor para Enviar Emails Transacionais e de Marketing](https://mailtrap.io/pt/blog/free-smtp-servers/)
- [Cómo Enviar Emails en Python con SMTP y API de Gmail](https://mailtrap.io/es/blog/python-send-email-gmail/)
- [Postfix vs. Sendmail vs. Exim](https://mailtrap.io/blog/postfix-sendmail-exim/)
- [Warm Lead Email Template: Tips and Best Practices](https://mailtrap.io/blog/warm-lead-email-templates/)
- [Configuration d'un Serveur SMTP - Un Guide Étape par Étape](https://mailtrap.io/fr/blog/setup-smtp-server/)
- [7 Best Free Email Marketing Platforms Compared: Find Out Which One You Should Try](https://mailtrap.io/blog/free-email-marketing-platforms/)
- [Como Enviar Emails com Telnet ](https://mailtrap.io/pt/blog/telnet-send-email/)
- [8 B2B Email Marketing Software Tried, Tested, and Compared: Find Out The Best Pick for Your Company](https://mailtrap.io/blog/b2b-email-marketing-software/)
- [Enviar Emails HTML en Laravel: SMTP y API Tutorial](https://mailtrap.io/es/blog/laravel-send-html-email/)
- [Cómo enviar emails en Python: Métodos SMTP y API de email explicados](https://mailtrap.io/es/blog/python-send-email/)
- [Guide PHPMailer : Configuration, Configuration SMTP et Envoi d'Emails](https://mailtrap.io/fr/blog/phpmailer/)
- [Guía de PHPMailer: Configuración, Setup SMTP y Envío de Emails](https://mailtrap.io/es/blog/phpmailer/)
- [What Types of Emails are There? A Breakdown of Transactional and Marketing Emails with Examples](https://mailtrap.io/blog/types-of-emails/)
- [Lawyers Email Marketing: A Go-to Guide for Beginners ](https://mailtrap.io/blog/email-marketing-for-lawyers/)
- [Email Marketing Lead Generation: Definitions, Examples, and Strategies  ](https://mailtrap.io/blog/email-marketing-lead-generation/)
- [What Is Secure Email Server & How Does It Work?](https://mailtrap.io/blog/secure-email-server/)
- [HTML Character Entities: NBSP and HTML Spaces Explained](https://mailtrap.io/blog/nbsp/)
- [What is AI Email Marketing & How to Use AI in Your Next Email Marketing Campaign](https://mailtrap.io/blog/ai-email-marketing/)
- [Email Marketing for Hotels: A Go-to Guide for Beginners](https://mailtrap.io/blog/email-marketing-for-hotels/)
- [How to Create B2B Email Marketing Strategy & List of Ready-to-Use Strategies](https://mailtrap.io/blog/b2b-email-marketing-strategy/)
- [Mail Merge With Gmail: A Beginner’s Guide](https://mailtrap.io/blog/mail-merge-gmail/)
- [Webhooks Explained](https://mailtrap.io/blog/what-are-webhooks/)
- [Email Blacklists Explained: Causes, Solutions, Prevention](https://mailtrap.io/blog/email-blacklist/)
- [How to Use B2B Email Marketing for Lead Generation](https://mailtrap.io/blog/b2b-email-marketing-lead-generation/)
- [Inbox Placement: A Beginner's Guide](https://mailtrap.io/blog/inbox-placement/)
- [19 Email Marketing Best Practices ](https://mailtrap.io/blog/email-marketing-best-practices/)
- [I've Tested and Compared SendGrid vs Mailgun: Here's What I Found](https://mailtrap.io/blog/sendgrid-vs-mailgun/)
- [B2B Email Marketing Best Practices](https://mailtrap.io/blog/b2b-email-marketing-best-practices/)
- [Top 10 Mailjet Alternatives for Sending Transactional and Marketing Emails ](https://mailtrap.io/blog/mailjet-alternatives/)
- [SMTP: The Protocol Behind Email Delivery – What Is It and How Does It Work](https://mailtrap.io/blog/smtp/)
- [The Ultimate Guide to Mailchimp Transactional Email (Mandrill) Alternatives](https://mailtrap.io/blog/mailchimp-transactional-email-alternatives/)
- [SMTP Relay: What Is It, How It Works, and Role in Email Deliverability](https://mailtrap.io/blog/smtp-relay/)
- [All You Need to Know about SMTP Server ](https://mailtrap.io/blog/what-is-smtp-server/)
- [Find Out Why Email Marketing Is Important: 11 Reasons Why You Should Invest](https://mailtrap.io/blog/why-email-marketing-is-important/)
- [Email Marketing for Beginners: A Complete Guide from Basics to Best Practices](https://mailtrap.io/blog/email-marketing/)
- [How to Send Email in Python: SMTP & Email API Methods Explained](https://mailtrap.io/blog/python-send-email/)
- [Email Deliverability Comparison: I Tested the Top Providers and Here’s What I Found](https://mailtrap.io/blog/email-deliverability-comparison/)
- [What Is Email List Management and How to Manage Your Email List Correctly](https://mailtrap.io/blog/email-list-management/)
- [How to Validate Emails in React](https://mailtrap.io/blog/validate-emails-in-react/)
- [Responsive HTML Email Template Development: A Step-by-Step Guide for Email Developers](https://mailtrap.io/blog/building-html-email-template/)
- [B2C Email Marketing: A Go-To Guide for Beginners](https://mailtrap.io/blog/b2c-email-marketing/)
- [How to Write ‘Schedule a Demo’ Emails that Drive Action](https://mailtrap.io/blog/how-to-write-schedule-a-demo-email/)
- [9 B2B Marketing Email Examples Analyzed: Here's What I Found](https://mailtrap.io/blog/b2b-marketing-email-examples/)
- [Developer’s Guide on Sending HTML Emails in Go: SMTP and Email API Covered](https://mailtrap.io/blog/golang-send-html-email/)
- [Send emails in Go using Gmail SMTP and API](https://mailtrap.io/blog/golang-send-email-gmail/)
- [12 Ruby Gems Worth Your Attention in 2024](https://mailtrap.io/blog/ruby-gems/)
- [Abandoned Cart Emails Best Practices to Use in Your Reengagement Campaigns](https://mailtrap.io/blog/abandoned-cart-emails-best-practices/)
- [Employee Survey Invitation Email Template](https://mailtrap.io/blog/employee-survey-invitation-email-template/)
- [Permission-Based Email Marketing: What Is It and How Does It Work](https://mailtrap.io/blog/permission-based-email-marketing/)
- [【徹底解説】GmailのSMTP設定の詳細ガイド](https://mailtrap.io/ja/blog/gmail-smtp/)
- [【徹底解説】SMTPやAPI、PHPMailer、Symfony Mailer、mail()関数を使ったPHPによるメール送信](https://mailtrap.io/ja/blog/php-email-sending/)
- [Kostenlose  SMTP-Server im Vergleich: Wählen Sie den besten für den Versand von transaktionalen und Marketing-E-Mails](https://mailtrap.io/de/blog/free-smtp-servers/)
- [Email Marketing For An Agency: A Go-To Guide For Beginners](https://mailtrap.io/blog/email-marketing-for-agencies/)
- [Mail Merge With Excel: A Beginner's Guide](https://mailtrap.io/blog/mail-merge-excel/)
- [Best 6 Email Marketing Platforms Compared: Find Out Which One Your Go-to Choice](https://mailtrap.io/blog/email-marketing-platforms/)
- [Mobile Apps Email Marketing: A Go-to Guide for Beginners](https://mailtrap.io/blog/email-marketing-for-apps/)
- [SaaS Email Marketing: A Go-to Guide for Beginners](https://mailtrap.io/blog/email-marketing-for-saas/)
- [Magento 2: Sending Emails Guide](https://mailtrap.io/blog/magento-send-email/)
- [【徹底解説】Laravelのメール送信：SMTP & API 完全ガイド ](https://mailtrap.io/ja/blog/send-email-in-laravel/)
- [100+ Black Friday Software Deals in 2024](https://mailtrap.io/blog/50-black-friday-software-deals-in-2024/)
- [Top Drip Email Templates to Streamline Your Sales Funnel](https://mailtrap.io/blog/drip-email-templates/)
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- [How to Send Emails in Spring Boot using SMTP or Email API](https://mailtrap.io/blog/spring-send-email/)
- [How to Send Emails From Excel](https://mailtrap.io/blog/excel-send-email/)
- [Deep Dive Into Salesforce Email Templates](https://mailtrap.io/blog/salesforce-email-templates/)
- [In-Depth Guide on Sending Emails With Apex](https://mailtrap.io/blog/apex-send-email/)
- [The Ins and Outs of POP 3 (Post Office Protocol 3)](https://mailtrap.io/blog/pop3/)
- [A Deep Dive Into IMAP: What Is It and How Does it Work?](https://mailtrap.io/blog/imap/)
- [A Deep-Dive Into the Types of Email Marketing ](https://mailtrap.io/blog/types-of-email-marketing/)
- [What Is Email Domain Reputation? ](https://mailtrap.io/blog/email-domain-reputation/)
- [What Is Mail Merge?](https://mailtrap.io/blog/mail-merge-explained/)
- [How to Configure WordPress SMTP Settings ](https://mailtrap.io/blog/wordpress-smtp-settings/)
- [Email IP Reputation: Everything You Need to Know to Get Emails Delivered](https://mailtrap.io/blog/email-ip-reputation/)
- [How to Send Emails in Ruby on Rails using SMTP and Email API](https://mailtrap.io/blog/ruby-on-rails-send-email/)
- [Difference Between IMAP, POP3, and SMTP Email Protocols](https://mailtrap.io/blog/imap-vs-pop3-vs-smtp-email-protocols/)
- [Legal Aspects of Email Marketing: Laws, Compliance, and Penalties](https://mailtrap.io/blog/email-marketing-laws/)
- [Step-By-Step Guide on Sending Mass Email in Gmail](https://mailtrap.io/blog/how-to-send-mass-email-in-gmail/)
- [How to Send Emails in C# using SMTP and email API](https://mailtrap.io/blog/csharp-send-email/)
- [How to Send Mass Email in Outlook](https://mailtrap.io/blog/how-to-send-mass-email-in-outlook/)
- [JavaScript Contact Form](https://mailtrap.io/blog/javascript-contact-form/)
- [How to Send Emails with Telnet ](https://mailtrap.io/blog/telnet-send-email/)
- [PTR Records: Why Do They Matter for Emails?](https://mailtrap.io/blog/ptr-records/)
- [Email Test Cases: Your Guide Through All the Steps](https://mailtrap.io/blog/email-test-cases/)
- [POP3 vs. IMAP: Which Email Protocol is Right for You?](https://mailtrap.io/blog/pop3-vs-imap/)
- [Ruby on Rails Contact Form](https://mailtrap.io/blog/ruby-on-rails-contact-form/)
- [How to Send Emails from Azure](https://mailtrap.io/blog/azure-send-email/)
- [Gmail and Yahoo Email Sender Requirements Update: What's Changed?](https://mailtrap.io/blog/gmail-yahoo-email-sender-requirements/)
- [Sending emails from Google Sheets](https://mailtrap.io/blog/send-emails-from-google-sheet/)
- [The Mega List of Best Email Testing Tools](https://mailtrap.io/blog/email-testing-tools/)
- [Email Testing for Beginners - Complete Guide](https://mailtrap.io/blog/email-testing-for-beginners/)
- [Stop Salesforce Email From Going to Spam](https://mailtrap.io/blog/salesforce-email-going-to-spam/)
- [Outlook Spam Filter Explained: A Step-by-Step Guide](https://mailtrap.io/blog/outlook-spam-filter/)
- [7 Automated Software Testing Tools for 2024 + BONUS ](https://mailtrap.io/blog/best-automation-testing-tools/)
- [How to Send Emails in WooCommerce using WP Mail Plugin](https://mailtrap.io/blog/woocommerce-send-email/)
- [How to Set Up WordPress Gmail SMTP for Sending Emails](https://mailtrap.io/blog/wordpress-gmail-smtp/)
- [Sending Emails Using Batch Files](https://mailtrap.io/blog/batch-file-send-email/)
- [Everything You Need to Know About Bulk Email](https://mailtrap.io/blog/bulk-email/)
- [Difference Between Hard and Soft Bounce](https://mailtrap.io/blog/soft-vs-hard-bounce/)
- [Email Bounce: Everything there's to know about it](https://mailtrap.io/blog/what-is-email-bounce/)
- [What Is Email Bounce Rate and Why Is It Important? ](https://mailtrap.io/blog/email-bounce-rate/)
- [A Journey on the Hidden Trail of Email Return Path](https://mailtrap.io/blog/returnpath-email/)
- [How to Prevent Emails from Going to the Spam Folder ](https://mailtrap.io/blog/avoid-spam-filters/)
- [No-Reply Email Address: All You Need to Know](https://mailtrap.io/blog/noreply-email-address/)
- [DMARC Protocol: What It is and Why You Should Use It](https://mailtrap.io/blog/dmarc-explained/)
- [Cold Email Personalization: Everything You Need to Know](https://mailtrap.io/blog/cold-email-personalization/)
- [How to Send Emails in Linux using Command Line and Email API](https://mailtrap.io/blog/linux-send-email/)
- [Outlook Spam Filter Not Working: What to Do About It](https://mailtrap.io/blog/outlook-spam-filter-not-working/)
- [How to Test Email: A Personal Journey](https://mailtrap.io/blog/how-to-test-email/)
- [Email Spam Words You Should Avoid](https://mailtrap.io/blog/email-spam-words/)
- [How to Test Emails in Your Python App](https://mailtrap.io/blog/python-test-email/)
- [A Quick Guide to Sending CAN-SPAM Compliant Cold Emails](https://mailtrap.io/blog/can-spam-cold-emails/)
- [BIMI: the New Word in Email Authentication](https://mailtrap.io/blog/bimi-email/)
- [SPF Record Explained](https://mailtrap.io/blog/spf-records-explained/)
- [DomainKeys Identified Mail or DKIM: Definition, Role, Use Cases, and Set Up](https://mailtrap.io/blog/dkim/)
- [Building an HTML email form - Frontend and Backend](https://mailtrap.io/blog/html-email-form/)
- [List Unsubscribe Header in Email](https://mailtrap.io/blog/list-unsubscribe-header/)
- [5 Customer Success Email Templates to Use in 2025](https://mailtrap.io/blog/customer-success-email-template/)
- [Performing an Email Sending Reputation Audit - All You Need to Know](https://mailtrap.io/blog/email-sending-reputation-audit/)
- [Email Deliverability Consultants and Why You May Need One](https://mailtrap.io/blog/email-deliverability-consultants/)
- [Boost Your Website’s Authority With These 13 Link-Building Email Templates](https://mailtrap.io/blog/link-building-email-templates/)
- [7 Email Preview Tools to Try Out Today](https://mailtrap.io/blog/email-preview/)
- [How to Send Emails in Rust: SMTP and email API Methods Explained](https://mailtrap.io/blog/rust-send-email/)
- [How to Build an Effective Email Newsletter Strategy](https://mailtrap.io/blog/email-newsletter-strategy/)
- [How to Validate Emails in React Native](https://mailtrap.io/blog/react-native-email-validation/)
- [Sending Emails with Angular App](https://mailtrap.io/blog/angular-send-email/)
- [A Comprehensive Guide to Navigating Gmail’s Spam Filter](https://mailtrap.io/blog/gmail-spam-filter/)
- [Email Marketing for Nonprofits In-Depth Guide](https://mailtrap.io/blog/email-marketing-for-nonprofits/)
- [Boost Co-worker Engagement With These 20 HR Newsletter Ideas ](https://mailtrap.io/blog/hr-newsletter-ideas/)
- [Comparing Email Marketing vs Marketing Automation: A Deep Dive into Effective Campaign Strategy](https://mailtrap.io/blog/email-marketing-vs-marketing-automation/)
- [10 Drip Email Campaign Examples to Inspire Your Strategy](https://mailtrap.io/blog/drip-email-campaign-examples/)
- [Send Emails with Gmail API](https://mailtrap.io/blog/send-emails-with-gmail-api/)
- [Salesforce Apps to Keep Under Your Radar](https://mailtrap.io/blog/best-salesforce-apps/)
- [2023 Email Signature Trends in Numbers](https://mailtrap.io/blog/email-signature-trends/)
- [Salesforce Email Integration: A Comprehensive Guide](https://mailtrap.io/blog/salesforce-email-integration/)
- [How to Set up Salesforce Email Relay: Full Guide with Examples](https://mailtrap.io/blog/salesforce-email-relay/)
- [Spiegazione dei record MX del DNS](https://mailtrap.io/it/blog/dns-mx-records/)
- [Explicación de DMARC](https://mailtrap.io/es/blog/dmarc-explained/)
- [DKIM Spiegato](https://mailtrap.io/it/blog/dkim/)
- [DKIM Explicado](https://mailtrap.io/es/blog/dkim/)
- [Email Marketing per principianti: guida completa dalle basi alle best practice](https://mailtrap.io/it/blog/email-marketing/)
- [Email Marketing para Iniciantes: Um Guia Completo do Básico às Melhores Práticas](https://mailtrap.io/pt/blog/email-marketing/)
- [Re-Engagement Emails: How to Win Back Your Audience’s Attention](https://mailtrap.io/blog/re-engagement-email/)
- [Email Marketing Essentials: A Framework for Online Coaches](https://mailtrap.io/blog/email-marketing-for-online-coaches/)
- [How to Test Emails in Salesforce with Mailtrap Email Sandbox ](https://mailtrap.io/blog/salesforce-test-emails/)
- [DMARC Explicado](https://mailtrap.io/pt/blog/dmarc-explained/)
- [Spiegazione del DMARC](https://mailtrap.io/it/blog/dmarc-explained/)
- [DKIM Explicado](https://mailtrap.io/pt/blog/dkim/)
- [Ideias de Email Marketing](https://mailtrap.io/pt/blog/email-marketing-ideas/)
- [Comprender Smtp: El Protocolo Detrás Del Envio de Correos Electrónicos](https://mailtrap.io/es/blog/smtp/)
- [Guia Completo sobre Relay SMTP: Definições, Exemplos e Melhores Práticas](https://mailtrap.io/pt/blog/smtp-relay/)
- [Tutto sui record SPF](https://mailtrap.io/it/blog/spf-records-explained/)
- [Compreendendo o SMTP – O Protocolo por Trás da Entrega de Emails](https://mailtrap.io/pt/blog/smtp/)
- [Comprensione di SMTP – Il protocollo dietro la consegna di posta elettronica](https://mailtrap.io/it/blog/smtp/)
- [Creating an Email Marketing Calendar: All You Need to Know](https://mailtrap.io/blog/email-marketing-calendar/)
- [Everything You Need to Know About CCPA and Email Marketing](https://mailtrap.io/blog/ccpa-email/)
- [13 Effective Welcome to the Team Email Templates for Smooth Onboarding](https://mailtrap.io/blog/welcome-to-the-team-email-template/)
- [DNS MX Records Explained](https://mailtrap.io/blog/dns-mx-records/)
- [How to Create SaaS Free Trial Emails That Convert](https://mailtrap.io/blog/saas-free-trial-email/)
- [Referral Email Marketing: What It is and How It Works](https://mailtrap.io/blog/referral-email-marketing/)
- [Learn What an Email Marketing Funnel Is and How to Make It Work](https://mailtrap.io/blog/email-marketing-funnel/)
- [We Asked Industry Experts to Share their Insights on Inbound and Outbound Email Marketing. Here’s What We Found](https://mailtrap.io/blog/outbound-vs-inbound-email-marketing/)
- [Cold Email Marketing: Everything from the basics to best practices and tools](https://mailtrap.io/blog/cold-email-marketing/)
- [25, 2525, 465, 587, and Other Numbers: All About SMTP Ports](https://mailtrap.io/blog/smtp-ports-25-465-587-used-for/)
- [Email Blast: Best Practice to Maximize Results](https://mailtrap.io/blog/email-blast/)
- [Using Handlebars with Mailtrap Email Templates | Quick Guide with Examples](https://mailtrap.io/blog/using-handlebars-with-mailtrap-email-templates-quick-guide-with-examples/)
- [Learn the Right Way to Calculate Email Open Rate](https://mailtrap.io/blog/calculate-email-open-rate/)
- [Web Hosting vs. Mail Hosting](https://mailtrap.io/blog/web-hosting-vs-email-hosting/)
- [How to Create an Email Template in Outlook](https://mailtrap.io/blog/create-email-template-outlook/)
- [<strong>ActionMailer Balancer: Keeping the Email Sending Equilibrium</strong>](https://mailtrap.io/blog/actionmailer-balancer/)
- [What are webhooks and how to use them](https://mailtrap.io/blog/what-are-webhooks-and-how-to-use-them/)
- [Mailtrap and Sendgrid - In-Depth Comparison](https://mailtrap.io/blog/mailtrap-vs-sendgrid/)
- [How to Improve Your Emails With CSS?](https://mailtrap.io/blog/email-css/)
- [Sending Emails with Ruby](https://mailtrap.io/blog/ruby-send-email/)
- [Email Archiving Guide](https://mailtrap.io/blog/email-archiving-guide/)
- [How to Embed HTML5 Video in Email](https://mailtrap.io/blog/html5-video-in-email/)
- [Backend Testing Guide](https://mailtrap.io/blog/back-end-testing/)
- [Email Accessibility Guide](https://mailtrap.io/blog/email-accessibility/)
- [Interactive Emails Explained with Examples](https://mailtrap.io/blog/interactive-emails/)
- [Cloud Email Explained with Options to Consider](https://mailtrap.io/blog/cloud-email/)
- [How to Validate an Email Address in C#](https://mailtrap.io/blog/validate-email-address-c/)
- [How to Send Emails with CodeIgniter](https://mailtrap.io/blog/send-emails-with-codeigniter/)
- [More Control Over Your Mailtrap Account With New User Management](https://mailtrap.io/blog/more-control-over-your-mailtrap-account-new-user-management/)
- [Blockchain Email Now and in the Future Perspective](https://mailtrap.io/blog/email-and-blockchain/)
- [GIF in Emails](https://mailtrap.io/blog/gif-in-emails/)
- [How Email List Cleaning Can Give a New Lease of Life to your Email Marketing?](https://mailtrap.io/blog/email-list-cleaning/)
- [Email Click-Through Rate: What to Know and How to Boost](https://mailtrap.io/blog/email-click-through-rate/)
- [Dynamic Email Content: What You Need To Know](https://mailtrap.io/blog/dynamic-email-content/)
- [A Guide To Email Marketing Automation — Benefits, Tools, and Tips](https://mailtrap.io/blog/email-marketing-automation/)
- [7 Email Design Mistakes That Can Negatively Impact Your ROI](https://mailtrap.io/blog/email-design-mistakes/)
- [Email testing with Selenium WebDriver on a Cloud-Based Selenium Grid](https://mailtrap.io/blog/email-testing-selenium-webdriver/)
- [Authenticated Received Chain Explained](https://mailtrap.io/blog/authenticated-received-chain/)
- [Should Your Team Have a Dedicated Email Developer?](https://mailtrap.io/blog/dedicated-email-developer/)
- [Email marketing in 2021: COVID-19 impact, predictions & expert opinions](https://mailtrap.io/blog/email-marketing-predictions-2021/)
- [Understanding Your SpamAssassin Score and Fixing It](https://mailtrap.io/blog/spamassassin-score/)
- [CakePHP Email Sending](https://mailtrap.io/blog/cakephp-email/)
- [Slack Email Integration: Sending and Receiving Emails](https://mailtrap.io/blog/slack-email/)
- [Confirmation Email Samples](https://mailtrap.io/blog/confirmation-email-examples/)
- [Laravel Email Testing: Mailtrap vs. Other Options](https://mailtrap.io/blog/laravel-email-testing/)
- [Meet the New Mailtrap Look](https://mailtrap.io/blog/new-mailtrap-look/)
- [What To Know About PCI DSS Compliance And Email](https://mailtrap.io/blog/pcs-dss-email-compliance/)
- [AI for Product Recommendations in Email](https://mailtrap.io/blog/ai-product-recommendations-email/)
- [QA Testing Memes](https://mailtrap.io/blog/qa-testing-memes/)
- [Spam Memes Collection](https://mailtrap.io/blog/spam-memes-collection/)
- [How to Validate Email Format in Rails: Regex and Gems](https://mailtrap.io/blog/rails-email-validation/)
- [Work from Home Alternatives for Remote Developers](https://mailtrap.io/blog/work-from-home-alternatives/)
- [HTML5 Email Validation Tutorial](https://mailtrap.io/blog/html5-email-validation-tutorial/)
- [Emails vs Instant Messages in a Workplace: Which to Make Your Go-To?](https://mailtrap.io/blog/emails_vs_instant_messages/)
- [How to Use Infographics in Your Email Newsletters](https://mailtrap.io/blog/infographics-email-marketing/)
- [The Power of Onboarding Emails for Product Success](https://mailtrap.io/blog/onboarding-email/)
- [How to Send Transactional Emails with Wordpress](https://mailtrap.io/blog/wordpress-transactional-emails/)
- [How to Set Up Emails for Password Resets with Devise](https://mailtrap.io/blog/devise-reset-password/)
- [Geeky Drinks for Better Code](https://mailtrap.io/blog/geeky-drinks-better-code/)
- [Mailgun Sandbox Domain Explained](https://mailtrap.io/blog/mailgun-sandbox-tutorial/)
- [What to Do When You Have Sent Test Emails to Your Customers](https://mailtrap.io/blog/sent-wrong-emails/)
- [Certonid — the SSH Certificate Authority Deployed on AWS Lambda](https://mailtrap.io/blog/certonid/)
- [How to Track Email Marketing Performance](https://mailtrap.io/blog/email-marketing-reports/)
- [How to Mask an Email Address](https://mailtrap.io/blog/email-masking/)
- [Common Email Rendering Issues in Outlook and How to Solve Them](https://mailtrap.io/blog/email-rendering-issues-outlook/)
- [The Best Email Design Size for Different Campaigns](https://mailtrap.io/blog/email-template-size/)
- [Laravel Top 18 Packages You Need to Try](https://mailtrap.io/blog/best-laravel-packages/)
- [Simple Email Validation in Java](https://mailtrap.io/blog/java-email-validation/)
- [The Best Email Memes](https://mailtrap.io/blog/email-meme/)
- [SendGrid vs Mailchimp](https://mailtrap.io/blog/sendgrid-vs-mailchimp/)
- [How to Handle Email Verification in Laravel](https://mailtrap.io/blog/laravel-email-verification/)
- [Laravel vs Wordpress](https://mailtrap.io/blog/laravel-vs-wordpress/)
- [Best Email Encryption Software](https://mailtrap.io/blog/email-encryption-software/)
- [Mail Merge with Python](https://mailtrap.io/blog/python-mail-merge/)
- [Email Marketing KPIs You Can or Can’t Do Without](https://mailtrap.io/blog/email-marketing-metrics/)
- [How to Send an Email in R](https://mailtrap.io/blog/r-send-email/)
- [How Email Tracking Works](https://mailtrap.io/blog/how-email-tracking-works/)
- [How to Implement DMARC Records](https://mailtrap.io/blog/dmarc-setup/)
- [HIPAA Compliant Email](https://mailtrap.io/blog/hipaa-compliant-email/)
- [Send Emails with Swift Mailer from PHP Apps](https://mailtrap.io/blog/swiftmailer-sendmail/)
- [Emails and GDPR - 11 Questions to Answer](https://mailtrap.io/blog/gdpr-and-emails/)
- [Your Guide to Laravel Email Queues](https://mailtrap.io/blog/laravel-mail-queue/)
- [The Best Free Email Tracking Software](https://mailtrap.io/blog/free-email-tracking-tools/)
- [Your Guide to Safe Emails: Create and Implement a DKIM Record](https://mailtrap.io/blog/create-dkim-tutorial/)
- [Everything You Want to Know About AMP for Email](https://mailtrap.io/blog/amp-email/)
- [How to Validate Emails in Angular](https://mailtrap.io/blog/angular-email-validation/)
- [What Makes a Password Reset Email Great?](https://mailtrap.io/blog/reset-password-email/)
- [Manage Email Throttling Right!](https://mailtrap.io/blog/email-throttling/)
- [What is an MTA?](https://mailtrap.io/blog/mail-transfer-agent/)
- [Email Analytics Tools](https://mailtrap.io/blog/email-analytics-tools/)
- [Learn How to Send Beautiful Mail Notifications in Laravel](https://mailtrap.io/blog/laravel-notification-tutorial/)
- [Building Contact Form and Handling Emails with React](https://mailtrap.io/blog/react-contact-form/)
- [550 5.1.1 Error: Detailed Instructions for Fixing It](https://mailtrap.io/blog/550-5-1-1-rejected-fix/)
- [Test SMTP Relay](https://mailtrap.io/blog/test-smtp-relay/)
- [All You Wanted to Know About Amazon SQS in 10 Minutes](https://mailtrap.io/blog/amazon-sqs-tutorial/)
- [Sending Email Notifications with Amazon SNS Made Easy](https://mailtrap.io/blog/amazon-sns-guide/)
- [What SMTP Queue Is and How to Manage Your Emails](https://mailtrap.io/blog/email-queuing/)
- [Amazon SES vs SendGrid](https://mailtrap.io/blog/amazon-ses-vs-sendgrid/)
- [Introduction to MailCatcher](https://mailtrap.io/blog/mailcatcher-guide/)
- [What Is Amazon SES and How to Use It?](https://mailtrap.io/blog/amazon-ses-explained/)
- [MailHog Tutorial](https://mailtrap.io/blog/mailhog-explained/)
- [Sending Emails with React Native](https://mailtrap.io/blog/react-native-send-email/)
- [Sending Emails with ReactJS](https://mailtrap.io/blog/react-send-email/)
- [Using and Testing Cc and Bcc in SMTP Protocol](https://mailtrap.io/blog/cc-bcc-in-smtp/)
- [Choosing an Email Framework for Your Campaigns](https://mailtrap.io/blog/best-email-frameworks/)
- [What SMTP Authentication Is and Why You Can't Ignore It](https://mailtrap.io/blog/smtp-auth/)
- [Recommended Maximum Email Size and Proven Ways to Optimize It](https://mailtrap.io/blog/email-size/)
- [Everything You Need to Know About SMTP Security](https://mailtrap.io/blog/smtp-security/)
- [List of All SMTP Commands and Response Codes](https://mailtrap.io/blog/smtp-commands-and-responses/)
- [Why Using Dummy Email for Testing Just Doesn’t Work](https://mailtrap.io/blog/email-for-testing/)
- [How to Test Emails in Mandrill, Sendgrid, and Mailgun](https://mailtrap.io/blog/test-sendgrid-mandrill-mailgun/)
- [Sendgrid vs Mandrill vs Mailgun - How to Choose?](https://mailtrap.io/blog/sendgrid-vs-mandrill-vs-mailgun/)
- [Embedding Images in HTML Email: Have the Rules Changed?](https://mailtrap.io/blog/embedding-images-in-html-email-have-the-rules-changed/)
- [How to Test SMTP Server from the Command Line via Telnet and in Online Tools](https://mailtrap.io/blog/how-to-test-smtp-server/)


## Pages

- [Mailtrap Contact Details](https://mailtrap.io/contact-details/)
- [Bootstrapping Fellows [UA]](https://mailtrap.io/uk/bootstrappers/)
- [Bootstrapping Fellows [PL]](https://mailtrap.io/pl/bootstrappers/)
- [Bootstrapping Fellows [DE]](https://mailtrap.io/de/bootstrappers/)
- [Bootstrapping Fellows [IT]](https://mailtrap.io/it/bootstrappers/)
- [Bootstrapping Fellows [FR]](https://mailtrap.io/fr/bootstrappers/)
- [Bootstrapping Fellows [ES]](https://mailtrap.io/es/bootstrappers/)
- [Resend alternative](https://mailtrap.io/mailtrap-resend-alternative/)
- [Email Security](https://mailtrap.io/security-and-compliance/)
- [Become a Partner Form](https://mailtrap.io/become-a-partner/)
- [Request Integration](https://mailtrap.io/request-integration/)
- [Mailtrap Integrations](https://mailtrap.io/integrate-with/)
- [Email MCP Server](https://mailtrap.io/email-mcp-server/)
- [List of Sub-Processors](https://mailtrap.io/sub-processors/)
- [Privacy Policy](https://mailtrap.io/privacy/)
- [Mailtrap Deliverability Guide [PL]](https://mailtrap.io/pl/email-deliverability-guide/)
- [Home page [JA]](https://mailtrap.io/ja/)
- [Home page [UA]](https://mailtrap.io/uk/)
- [Home page [FR]](https://mailtrap.io/fr/)
- [Home page [DE]](https://mailtrap.io/de/)
- [Home page [PL]](https://mailtrap.io/pl/)
- [Home page [IT]](https://mailtrap.io/it/)
- [Home page [PT]](https://mailtrap.io/pt/)
- [Home page [ES]](https://mailtrap.io/es/)
- [Home page](https://mailtrap.io/)
- [Mailtrap Deliverability Guide [DE]](https://mailtrap.io/de/deliverability-guide/)
- [Mailtrap Deliverability Guide [IT]](https://mailtrap.io/it/email-deliverability-guide/)
- [Mailtrap Deliverability Guide [JA]](https://mailtrap.io/ja/email-deliverability-guide/)
- [DMARC Checker](https://mailtrap.io/free-dmarc-record-checker/)
- [IP Blocklist Checker](https://mailtrap.io/free-ip-blacklist-checker/)
- [Domain Blocklist Checker](https://mailtrap.io/free-domain-blacklist-checker/)
- [Mailtrap Affiliate Program [ES]](https://mailtrap.io/es/affiliate-program/)
- [Mailtrap Partner Program [DE]](https://mailtrap.io/de/partnership-program/)
- [Mailtrap Partner Program [ITA]](https://mailtrap.io/it/partnership-program/)
- [Mailtrap Partner Program [FR]](https://mailtrap.io/fr/partnership-program/)
- [Mailtrap Partner Program [ES]](https://mailtrap.io/es/partnership-program/)
- [Mailtrap for Multi-Tenant SaaS and Systems [PL]](https://mailtrap.io/pl/for-multi-tenant-saas-and-systems/)
- [Mailtrap for Multi-Tenant SaaS and Systems [DE]](https://mailtrap.io/de/for-multi-tenant-saas-and-systems/)
- [Mailtrap for Multi-Tenant SaaS and Systems [IT]](https://mailtrap.io/it/for-multi-tenant-saas-and-systems/)
- [Mailtrap for Multi-Tenant SaaS and Systems [FR]](https://mailtrap.io/fr/for-multi-tenant-saas-and-systems/)
- [Mailtrap for Multi-Tenant SaaS and Systems [ES]](https://mailtrap.io/es/for-multi-tenant-saas-and-systems/)
- [Mailtrap for Software Houses [UA]](https://mailtrap.io/uk/for-software-houses/)
- [Mailtrap for Software Houses [JA]](https://mailtrap.io/ja/for-software-houses/)
- [Mailtrap for Software Houses [PL]](https://mailtrap.io/pl/for-software-houses/)
- [Mailtrap for Software Houses [DE]](https://mailtrap.io/de/for-software-houses/)
- [Mailtrap for Software Houses [IT]](https://mailtrap.io/it/for-software-houses/)
- [Mailtrap for Software Houses [FR]](https://mailtrap.io/fr/for-software-houses/)
- [Mailtrap for Software Houses [ES]](https://mailtrap.io/es/for-software-houses/)
- [Mailtrap for Software Houses [PT]](https://mailtrap.io/pt/for-software-houses/)
- [Mailtrap Deliverability Guide [FR]](https://mailtrap.io/fr/email-deliverability-guide/)
- [DKIM Checker](https://mailtrap.io/free-dkim-record-checker/)
- [SPF Checker](https://mailtrap.io/free-spf-record-checker/)
- [Mailtrap Deliverability Guide [ES]](https://mailtrap.io/es/email-deliverability-guide/)
- [Mailtrap Affiliate Program [PL]](https://mailtrap.io/pl/affiliate-program/)
- [Mailtrap Partner Program for Agencies [PL]](https://mailtrap.io/pl/partner-program-for-agencies/)
- [Mailtrap Partner Program [PL]](https://mailtrap.io/pl/partnership-program/)
- [Free SMTP Server](https://mailtrap.io/free-smtp-server/)
- [Postmark alternative [JA]](https://mailtrap.io/ja/mailtrap-postmark-alternative/)
- [Postmark alternative [PL]](https://mailtrap.io/pl/mailtrap-postmark-alternative/)
- [Postmark alternative [DE]](https://mailtrap.io/de/mailtrap-postmark-alternative/)
- [Postmark alternative [IT]](https://mailtrap.io/it/mailtrap-postmark-alternative/)
- [Postmark alternative [FR]](https://mailtrap.io/fr/mailtrap-postmark-alternative/)
- [Postmark alternative [ES]](https://mailtrap.io/es/mailtrap-postmark-alternative/)
- [Postmark alternative [PT]](https://mailtrap.io/pt/mailtrap-postmark-alternative/)
- [Mailtrap for Multi-Tenant SaaS and Systems [JA]](https://mailtrap.io/ja/for-multi-tenant-saas-and-systems/)
- [Mailtrap Partner Program for Agencies [JA]](https://mailtrap.io/ja/partner-program-for-agencies/)
- [Mailtrap Affiliate Program [JA]](https://mailtrap.io/ja/affiliate-program/)
- [Mailtrap Partner Program [JA]](https://mailtrap.io/ja/partnership-program/)
- [Bootstrapping Fellows [JA]](https://mailtrap.io/ja/bootstrappers/)
- [Mailtrap for Multi-Tenant SaaS and Systems [PT]](https://mailtrap.io/pt/for-multi-tenant-saas-and-systems/)
- [Mailtrap Partner Program for Agencies [PT]](https://mailtrap.io/pt/partner-program-for-agencies/)
- [Mailtrap Affiliate Program [PT]](https://mailtrap.io/pt/affiliate-program/)
- [Mailtrap Partner Program [PT]](https://mailtrap.io/pt/partnership-program/)
- [Bootstrapping Fellows [PT]](https://mailtrap.io/pt/bootstrappers/)
- [Bootstrapping Fellows](https://mailtrap.io/bootstrappers/)
- [Mailtrap Deliverability Guide](https://mailtrap.io/email-deliverability-guide/)
- [Terms of Service](https://mailtrap.io/terms/)
- [DIGITAL OPERATIONAL RESILIENCE ADDENDUM](https://mailtrap.io/dora/)
- [Postmark migration [UA]](https://mailtrap.io/uk/postmark-migration/)
- [Mailtrap Affiliate Program [UA]](https://mailtrap.io/uk/affiliate-program/)
- [Postmark alternative [UA]](https://mailtrap.io/uk/mailtrap-postmark-alternative/)
- [Mailtrap Affiliate Program](https://mailtrap.io/affiliate-program/)
- [Mailtrap Partner Program](https://mailtrap.io/partnership-program/)
- [Mailtrap Partner Program for Agencies](https://mailtrap.io/partner-program-for-agencies/)
- [Postmark migration](https://mailtrap.io/postmark-migration/)
- [Railsware Products Studio LLC                                   Data Processing Addendum](https://mailtrap.io/dpa/)
- [Acceptable Use Policy](https://mailtrap.io/acceptable-use-policy/)
- [Postmark alternative](https://mailtrap.io/mailtrap-postmark-alternative/)
- [Email Marketing [UA]](https://mailtrap.io/uk/email-marketing/)
- [Onboarding Assistance [PL]](https://mailtrap.io/pl/mailtrap-onboarding-assistance/)
- [Actionable Analytics [PL]](https://mailtrap.io/pl/actionable-analytics/)
- [Campaign Scheduling [PL]](https://mailtrap.io/pl/campaign-scheduling/)
- [Mailtrap Contacts [PL]](https://mailtrap.io/pl/mailtrap-contacts/)
- [Email Templates [PL]](https://mailtrap.io/pl/email-templates/)
- [Email Template Builder [PL]](https://mailtrap.io/pl/email-builder/)
- [Email Marketing [PL]](https://mailtrap.io/pl/email-marketing/)
- [Spam Checker](https://mailtrap.io/email-spam-checker/)
- [Onboarding Assistance [IT]](https://mailtrap.io/it/mailtrap-onboarding-assistance/)
- [Onboarding Assistance [FR]](https://mailtrap.io/fr/mailtrap-onboarding-assistance/)
- [Onboarding Assistance [ES]](https://mailtrap.io/es/mailtrap-onboarding-assistance/)
- [Deliverability Consultation [DE]](https://mailtrap.io/de/deliverability-consultation/)
- [Onboarding Assistance [DE]](https://mailtrap.io/de/mailtrap-onboarding-assistance/)
- [Email Marketing [DE]](https://mailtrap.io/de/email-marketing/)
- [Actionable Analytics [DE]](https://mailtrap.io/de/actionable-analytics/)
- [Campaign Scheduling [DE]](https://mailtrap.io/de/campaign-scheduling/)
- [Mailtrap Contacts [DE]](https://mailtrap.io/de/mailtrap-contacts/)
- [Email Templates [DE]](https://mailtrap.io/de/email-templates/)
- [Email Template Builder [DE]](https://mailtrap.io/de/email-builder/)
- [Deliverability Consultation [PT]](https://mailtrap.io/pt/deliverability-consultation/)
- [Onboarding Assistance [PT]](https://mailtrap.io/pt/mailtrap-onboarding-assistance/)
- [Deliverability Consultation [JA]](https://mailtrap.io/ja/deliverability-consultation/)
- [Onboarding Assistance [JA]](https://mailtrap.io/ja/mailtrap-onboarding-assistance/)
- [Email Marketing [JA]](https://mailtrap.io/ja/email-marketing/)
- [Actionable Analytics [JA]](https://mailtrap.io/ja/actionable-analytics/)
- [Campaign Scheduling [JA]](https://mailtrap.io/ja/campaign-scheduling/)
- [Mailtrap Contacts [JA]](https://mailtrap.io/ja/mailtrap-contacts/)
- [Email Template Builder [JA]](https://mailtrap.io/ja/email-builder/)
- [Email Templates [JA]](https://mailtrap.io/ja/email-templates/)
- [Deliverability Consultation [UA]](https://mailtrap.io/uk/deliverability-consultation/)
- [Email Templates [UA]](https://mailtrap.io/uk/email-templates/)
- [Onboarding Assistance [UA]](https://mailtrap.io/uk/mailtrap-onboarding-assistance/)
- [Actionable Analytics [UA]](https://mailtrap.io/uk/analytics/)
- [Campaign Scheduling [UA]](https://mailtrap.io/uk/campaign-scheduling/)
- [Mailtrap Contacts [UA]](https://mailtrap.io/uk/mailtrap-contacts/)
- [Email Template Builder [UA]](https://mailtrap.io/uk/email-builder/)
- [Deliverability Consulting](https://mailtrap.io/deliverability-consultation/)
- [Email Marketing [IT]](https://mailtrap.io/it/email-marketing/)
- [Email Marketing [FR]](https://mailtrap.io/fr/email-marketing/)
- [Email Templates [IT]](https://mailtrap.io/it/email-templates/)
- [Campaign Scheduling [IT]](https://mailtrap.io/it/campaign-scheduling/)
- [Mailtrap Contacts [IT]](https://mailtrap.io/it/mailtrap-contacts/)
- [Email Template Builder [IT]](https://mailtrap.io/it/email-builder/)
- [Actionable Analytics [IT]](https://mailtrap.io/it/actionable-analytics/)
- [Actionable Analytics [FR]](https://mailtrap.io/fr/actionable-analytics/)
- [Campaign Scheduling [FR]](https://mailtrap.io/fr/campaign-scheduling/)
- [Mailtrap Contacts [FR]](https://mailtrap.io/fr/mailtrap-contacts/)
- [Email Templates [FR]](https://mailtrap.io/fr/email-templates/)
- [Email Template Builder [FR]](https://mailtrap.io/fr/email-builder/)
- [Email Marketing [ES]](https://mailtrap.io/es/email-marketing/)
- [Campaign Scheduling [ES]](https://mailtrap.io/es/campaign-scheduling/)
- [Email Template Builder [ES]](https://mailtrap.io/es/email-builder/)
- [Email Templates [ES]](https://mailtrap.io/es/email-templates/)
- [Mailtrap Contacts [ES]](https://mailtrap.io/es/mailtrap-contacts/)
- [Actionable Analytics [ES]](https://mailtrap.io/es/actionable-analytics/)
- [Email Marketing [PT]](https://mailtrap.io/pt/email-marketing/)
- [Pricing](https://mailtrap.io/pricing/)
- [Campaign Scheduling [PT]](https://mailtrap.io/pt/campaign-scheduling/)
- [Mailtrap Contacts [PT]](https://mailtrap.io/pt/mailtrap-contacts/)
- [Email Templates [PT]](https://mailtrap.io/pt/email-templates/)
- [Email Template Builder [PT]](https://mailtrap.io/pt/email-builder/)
- [Actionable Analytics [PT]](https://mailtrap.io/pt/actionable-analytics/)
- [Email Template Builder](https://mailtrap.io/email-builder/)
- [Email Templates](https://mailtrap.io/email-templates/)
- [Onboarding Assistance](https://mailtrap.io/mailtrap-onboarding-assistance/)
- [Campaign Scheduling](https://mailtrap.io/campaign-scheduling/)
- [Actionable Analytics](https://mailtrap.io/actionable-analytics/)
- [Mailtrap Contacts](https://mailtrap.io/mailtrap-contacts/)
- [Mailtrap Migration Guide [UA]](https://mailtrap.io/uk/mailtrap-migration-guide/)
- [Mailtrap for Multi-Tenant SaaS and Systems](https://mailtrap.io/for-multi-tenant-saas-and-systems/)
- [Mailtrap Migration Guide [PL]](https://mailtrap.io/pl/mailtrap-migration-guide/)
- [Mailtrap Migration Guide [ES]](https://mailtrap.io/es/mailtrap-migration-guide/)
- [Mailtrap Migration Guide [DE]](https://mailtrap.io/de/mailtrap-migration-guide/)
- [Mailtrap Migration Guide [FR]](https://mailtrap.io/fr/mailtrap-migration-guide/)
- [Mailtrap Migration Guide [IT]](https://mailtrap.io/it/mailtrap-migration-guide/)
- [Mailtrap Migration Guide [PT]](https://mailtrap.io/pt/mailtrap-migration-guide/)
- [Mailtrap Migration Guide [JA]](https://mailtrap.io/ja/mailtrap-migration-guide/)
- [Migrating From Your Email-Sending Solution [PL]](https://mailtrap.io/pl/migration/)
- [Talk to Sales [PL]](https://mailtrap.io/pl/talk-to-sales/)
- [Mailtrap Migration Guide](https://mailtrap.io/mailtrap-migration-guide/)
- [Talk to Sales [UA]](https://mailtrap.io/uk/talk-to-sales/)
- [Migrating From Your Email-Sending Solution [UA]](https://mailtrap.io/uk/migration/)
- [Talk to Sales [DE]](https://mailtrap.io/de/talk-to-sales/)
- [Migrating From Your Email-Sending Solution [DE]](https://mailtrap.io/de/migration/)
- [Migrating From Your Email-Sending Solution [JA]](https://mailtrap.io/ja/migration/)
- [Talk to Sales [JA]](https://mailtrap.io/ja/talk-to-sales/)
- [Migrating From Your Email-Sending Solution [IT]](https://mailtrap.io/it/migration/)
- [Talk to Sales [IT]](https://mailtrap.io/it/talk-to-sales/)
- [Migrating From Your Email-Sending Solution [FR]](https://mailtrap.io/fr/migration/)
- [Talk to Sales [FR]](https://mailtrap.io/fr/talk-to-sales/)
- [Talk to Sales [ES]](https://mailtrap.io/es/talk-to-sales/)
- [Migrating From Your Email-Sending Solution [ES]](https://mailtrap.io/es/migration/)
- [Migrating From Your Email-Sending Solution [PT]](https://mailtrap.io/pt/migration/)
- [Talk to Sales [PT]](https://mailtrap.io/pt/talk-to-sales/)
- [Migrating From Your Email-Sending Solution](https://mailtrap.io/migration/)
- [SMTP API](https://mailtrap.io/smtp-api/)
- [Talk to Mailtrap Team](https://mailtrap.io/talk-to-sales/)
- [Transactional Email API](https://mailtrap.io/transactional-email-api/)
- [Email Marketing](https://mailtrap.io/email-marketing/)
- [Transactional SMTP Service](https://mailtrap.io/transactional-smtp-service/)
- [Mailtrap for Software Houses](https://mailtrap.io/for-software-houses/)
- [SMTP service [DE]](https://mailtrap.io/de/smtp-service/)
- [Spam Checker [DE]](https://mailtrap.io/de/email-spam-checker/)
- [Pricing [DE]](https://mailtrap.io/de/pricing/)
- [Bulk Email Service [DE]](https://mailtrap.io/de/bulk-email-service/)
- [Amazon SES alternative [DE]](https://mailtrap.io/de/mailtrap-amazon-ses-alternative/)
- [Mailgun alternative [DE]](https://mailtrap.io/de/mailtrap-mailgun-alternative/)
- [HubSpot Transactional Emails alternative [DE]](https://mailtrap.io/de/hubspot-transactional-emails-alternative/)
- [Mandrill alternative [DE]](https://mailtrap.io/de/mailtrap-mandrill-alternative/)
- [SendGrid alternative [DE]](https://mailtrap.io/de/mailtrap-sendgrid-alternative/)
- [Email API [DE]](https://mailtrap.io/de/email-api/)
- [Email Sending [DE]](https://mailtrap.io/de/email-sending/)
- [Email Sandbox [DE]](https://mailtrap.io/de/email-sandbox/)
- [Testing API [JA]](https://mailtrap.io/ja/automated-email-testing/)
- [Spam Checker [JA]](https://mailtrap.io/ja/email-spam-checker/)
- [SMTP service [JA]](https://mailtrap.io/ja/smtp-service/)
- [QA Automation [JA]](https://mailtrap.io/ja/qa-automation/)
- [HTML Checker [JA]](https://mailtrap.io/ja/html-checker/)
- [Fake SMTP Server [JA]](https://mailtrap.io/ja/fake-smtp-server/)
- [Email API [JA]](https://mailtrap.io/ja/email-api/)
- [Bulk Email Service [JA]](https://mailtrap.io/ja/bulk-email-service/)
- [Email Sending [JA]](https://mailtrap.io/ja/email-sending/)
- [Email Sandbox [JA]](https://mailtrap.io/ja/email-sandbox/)
- [SendGrid migration [JA]](https://mailtrap.io/ja/sendgrid-migration/)
- [Pricing [JA]](https://mailtrap.io/ja/pricing/)
- [Mandrill migration [JA]](https://mailtrap.io/ja/mandrill-migration/)
- [Testing API [DE]](https://mailtrap.io/de/automated-email-testing/)
- [HTML Checker [DE]](https://mailtrap.io/de/html-email-checker/)
- [Fake SMTP Server [DE]](https://mailtrap.io/de/fake-smtp-server/)
- [QA Automation [DE]](https://mailtrap.io/de/qa-automation/)
- [Mailgun migration [DE]](https://mailtrap.io/de/mailgun-migration/)
- [Amazon SES migration [DE]](https://mailtrap.io/de/amazon-ses-migration/)
- [SendGrid migration [DE]](https://mailtrap.io/de/sendgrid-migration/)
- [Mandrill migration [DE]](https://mailtrap.io/de/mandrill-migration/)
- [Amazon SES alternative [JA]](https://mailtrap.io/ja/mailtrap-amazon-ses-alternative/)
- [Sendgrid alternative [JA]](https://mailtrap.io/ja/mailtrap-sendgrid-alternative/)
- [HubSpot Transactional Emails alternative [JA]](https://mailtrap.io/ja/hubspot-transactional-emails-alternative/)
- [Mandrill alternative [JA]](https://mailtrap.io/ja/mailtrap-mandrill-alternative/)
- [Mailgun alternative [JA]](https://mailtrap.io/ja/mailtrap-mailgun-alternative/)
- [Mailgun migration [JA]](https://mailtrap.io/ja/mailgun-migration/)
- [Amazon SES migration [JA]](https://mailtrap.io/ja/amazon-ses-migration/)
- [HubSpot Transactional Emails alternative [IT]](https://mailtrap.io/it/hubspot-transactional-emails-alternative/)
- [HubSpot Transactional Emails alternative [UK]](https://mailtrap.io/uk/hubspot-transactional-emails-alternative/)
- [HubSpot Transactional Emails alternative [PL]](https://mailtrap.io/pl/hubspot-transactional-emails-alternative/)
- [HubSpot Transactional Emails alternative [FR]](https://mailtrap.io/fr/hubspot-transactional-emails-alternative/)
- [HubSpot Transactional Emails alternative [ES]](https://mailtrap.io/es/hubspot-transactional-emails-alternative/)
- [HubSpot Transactional Emails alternative [PT]](https://mailtrap.io/pt/hubspot-transactional-emails-alternative/)
- [HubSpot Transactional Emails alternative](https://mailtrap.io/hubspot-transactional-emails-alternative/)
- [Email Sandbox [FR]](https://mailtrap.io/fr/email-sandbox/)
- [Email Sending [FR]](https://mailtrap.io/fr/email-sending/)
- [Bulk Email Service [FR]](https://mailtrap.io/fr/bulk-email-service/)
- [SMTP service [FR]](https://mailtrap.io/fr/smtp-service/)
- [Email API [FR]](https://mailtrap.io/fr/email-api/)
- [HTML Checker [FR]](https://mailtrap.io/fr/html-email-checker/)
- [Fake SMTP Server [FR]](https://mailtrap.io/fr/fake-smtp-server/)
- [QA Automation [FR]](https://mailtrap.io/fr/qa-automation/)
- [Spam Checker [FR]](https://mailtrap.io/fr/email-spam-checker/)
- [Testing API [FR]](https://mailtrap.io/fr/automated-email-testing/)
- [SendGrid migration [FR]](https://mailtrap.io/fr/sendgrid-migration/)
- [Mailgun migration [FR]](https://mailtrap.io/fr/mailgun-migration/)
- [Amazon SES migration [FR]](https://mailtrap.io/fr/amazon-ses-migration/)
- [Mandrill migration [FR]](https://mailtrap.io/fr/mandrill-migration/)
- [Amazon SES alternative [FR]](https://mailtrap.io/fr/mailtrap-amazon-ses-alternative/)
- [SendGrid alternative [FR]](https://mailtrap.io/fr/mailtrap-sendgrid-alternative/)
- [Mailgun alternative [FR]](https://mailtrap.io/fr/mailtrap-mailgun-alternative/)
- [Mandrill alternative [FR]](https://mailtrap.io/fr/mandrill-alternative/)
- [Pricing [FR]](https://mailtrap.io/fr/pricing/)
- [Pricing [UK]](https://mailtrap.io/uk/pricing/)
- [Email Sending [UK]](https://mailtrap.io/uk/email-sending/)
- [Email Sandbox [UK]](https://mailtrap.io/uk/email-sandbox/)
- [Amazon SES alternative [UK]](https://mailtrap.io/uk/mailtrap-amazon-ses-alternative/)
- [Sendgrid alternative [UK]](https://mailtrap.io/uk/mailtrap-sendgrid-alternative/)
- [Mandrill alternative [UK]](https://mailtrap.io/uk/mailtrap-mandrill-alternative/)
- [Mailgun alternative [UK]](https://mailtrap.io/uk/mailtrap-mailgun-alternative/)
- [Amazon SES migration [UK]](https://mailtrap.io/uk/amazon-ses-migration/)
- [Mandrill migration [UK]](https://mailtrap.io/uk/mandrill-migration/)
- [SendGrid migration [UK]](https://mailtrap.io/uk/sendgrid-migration/)
- [Mailgun migration [UK]](https://mailtrap.io/uk/mailgun-migration/)
- [Spam Checker [UK]](https://mailtrap.io/uk/email-spam-checker/)
- [SMTP service [UK]](https://mailtrap.io/uk/smtp-service/)
- [Testing API [UK]](https://mailtrap.io/uk/automated-email-testing/)
- [HTML Checker [UK]](https://mailtrap.io/uk/html-email-checker/)
- [Fake SMTP Server [UK]](https://mailtrap.io/uk/fake-smtp-server/)
- [Email API [UK]](https://mailtrap.io/uk/email-api/)
- [Bulk Email Service [UK]](https://mailtrap.io/uk/bulk-email-service/)
- [QA Automation [UK]](https://mailtrap.io/uk/qa-automation/)
- [Railsware Products Studio LLC Navigational Information Statement](https://mailtrap.io/navigational-info/)
- [Bulk Email Service [IT]](https://mailtrap.io/it/bulk-email-service/)
- [SMTP service [IT]](https://mailtrap.io/it/smtp-service/)
- [Email API [IT]](https://mailtrap.io/it/email-api/)
- [QA Automation [IT]](https://mailtrap.io/it/qa-automation/)
- [Testing API [IT]](https://mailtrap.io/it/automated-email-testing/)
- [Spam Checker [IT]](https://mailtrap.io/it/email-spam-checker/)
- [HTML Checker [IT]](https://mailtrap.io/it/html-email-checker/)
- [Fake SMTP Server [IT]](https://mailtrap.io/it/fake-smtp-server/)
- [Amazon SES alternative [IT]](https://mailtrap.io/it/mailtrap-amazon-ses-alternative/)
- [Mandrill alternative [IT]](https://mailtrap.io/it/mailtrap-mandrill-alternative/)
- [Mailgun alternative [IT]](https://mailtrap.io/it/mailtrap-mailgun-alternative/)
- [Sendgrid alternative [IT]](https://mailtrap.io/it/mailtrap-sendgrid-alternative/)
- [Amazon SES migration [IT]](https://mailtrap.io/it/amazon-ses-migration/)
- [Mandrill migration [IT]](https://mailtrap.io/it/mandrill-migration/)
- [Mailgun migration [IT]](https://mailtrap.io/it/mailgun-migration/)
- [SendGrid migration [IT]](https://mailtrap.io/it/sendgrid-migration/)
- [SMTP service [PL]](https://mailtrap.io/pl/smtp-service/)
- [Bulk Email Service [PL]](https://mailtrap.io/pl/bulk-email-service/)
- [Email API [PL]](https://mailtrap.io/pl/email-api/)
- [HTML Checker [PL]](https://mailtrap.io/pl/html-email-checker/)
- [Spam Checker [PL]](https://mailtrap.io/pl/email-spam-checker/)
- [Testing API [PL]](https://mailtrap.io/pl/automated-email-testing/)
- [QA Automation [PL]](https://mailtrap.io/pl/qa-automation/)
- [Fake SMTP Server [PL]](https://mailtrap.io/pl/fake-smtp-server/)
- [Email Sandbox [IT]](https://mailtrap.io/it/email-sandbox/)
- [Pricing [IT]](https://mailtrap.io/it/pricing/)
- [Email Sending [IT]](https://mailtrap.io/it/email-sending/)
- [Sendgrid alternative [PL]](https://mailtrap.io/pl/mailtrap-sendgrid-alternative/)
- [Mailgun alternative [PL]](https://mailtrap.io/pl/mailtrap-mailgun-alternative/)
- [Mandrill alternative [PL]](https://mailtrap.io/pl/mailtrap-mandrill-alternative/)
- [Amazon SES alternative [PL]](https://mailtrap.io/pl/mailtrap-amazon-ses-alternative/)
- [Amazon SES migration [PL]](https://mailtrap.io/pl/amazon-ses-migration/)
- [Mandrill migration [PL]](https://mailtrap.io/pl/mandrill-migration/)
- [Mailgun migration [PL]](https://mailtrap.io/pl/mailgun-migration/)
- [SendGrid migration [PL]](https://mailtrap.io/pl/sendgrid-migration/)
- [Testing API [PT]](https://mailtrap.io/pt/automated-email-testing/)
- [Spam Checker [PT]](https://mailtrap.io/pt/email-spam-checker/)
- [QA Automation [PT]](https://mailtrap.io/pt/qa-automation/)
- [HTML Checker [PT]](https://mailtrap.io/pt/html-email-checker/)
- [Fake SMTP Server [PT]](https://mailtrap.io/pt/fake-smtp-server/)
- [SMTP service [PT]](https://mailtrap.io/pt/smtp-service/)
- [Email API [PT]](https://mailtrap.io/pt/email-api/)
- [Bulk Email Service [PT]](https://mailtrap.io/pt/bulk-email-service/)
- [SendGrid migration [PT]](https://mailtrap.io/pt/sendgrid-migration/)
- [Sendgrid alternative [PT]](https://mailtrap.io/pt/mailtrap-sendgrid-alternative/)
- [Mandrill migration [PT]](https://mailtrap.io/pt/mandrill-migration/)
- [Mandrill alternative [PT]](https://mailtrap.io/pt/mailtrap-mandrill-alternative/)
- [Mailgun migration [PT]](https://mailtrap.io/pt/mailgun-migration/)
- [Mailgun alternative [PT]](https://mailtrap.io/pt/mailtrap-mailgun-alternative/)
- [Amazon SES migration [PT]](https://mailtrap.io/pt/amazon-ses-migration/)
- [Amazon SES alternative [PT]](https://mailtrap.io/pt/mailtrap-amazon-ses-alternative/)
- [Pricing [PT]](https://mailtrap.io/pt/pricing/)
- [Email Sending [PT]](https://mailtrap.io/pt/email-sending/)
- [Email Sandbox [PT]](https://mailtrap.io/pt/email-sandbox/)
- [Testing API [ES]](https://mailtrap.io/es/automated-email-testing/)
- [Spam Checker [ES]](https://mailtrap.io/es/email-spam-checker/)
- [QA Automation [ES]](https://mailtrap.io/es/qa-automation/)
- [Fake SMTP Server [ES]](https://mailtrap.io/es/fake-smtp-server/)
- [HTML Checker [ES]](https://mailtrap.io/es/html-email-checker/)
- [SMTP service [ES]](https://mailtrap.io/es/smtp-service/)
- [Bulk Email Service [ES]](https://mailtrap.io/es/bulk-email-service/)
- [Email API [ES]](https://mailtrap.io/es/email-api/)
- [Amazon SES migration [ES]](https://mailtrap.io/es/amazon-ses-migration/)
- [Amazon SES alternative [ES]](https://mailtrap.io/es/mailtrap-amazon-ses-alternative/)
- [Mailgun alternative [ES]](https://mailtrap.io/es/mailtrap-mailgun-alternative/)
- [Mailgun migration [ES]](https://mailtrap.io/es/mailgun-migration/)
- [Mandrill alternative [ES]](https://mailtrap.io/es/mailtrap-mandrill-alternative/)
- [Mandrill migration [ES]](https://mailtrap.io/es/mandrill-migration/)
- [Sendgrid alternative [ES]](https://mailtrap.io/es/mailtrap-sendgrid-alternative/)
- [SendGrid migration [ES]](https://mailtrap.io/es/sendgrid-migration/)
- [Pricing [ES]](https://mailtrap.io/es/pricing/)
- [Email Sending [ES]](https://mailtrap.io/es/email-sending/)
- [Email Sandbox [ES]](https://mailtrap.io/es/email-sandbox/)
- [Pricing [PL]](https://mailtrap.io/pl/pricing/)
- [Email Sending [PL]](https://mailtrap.io/pl/email-sending/)
- [Email Sandbox [PL]](https://mailtrap.io/pl/email-sandbox/)
- [An Important Notice Regarding the Use of Mailtrap (for Commercial Purposes)](https://mailtrap.io/mailtrap-use/)
- [Bulk Email Service](https://mailtrap.io/bulk-email-service/)
- [SMTP Service](https://mailtrap.io/smtp-service/)
- [Mailgun alternative](https://mailtrap.io/mailtrap-mailgun-alternative/)
- [Sendgrid alternative](https://mailtrap.io/mailtrap-sendgrid-alternative/)
- [Mandrill alternative](https://mailtrap.io/mailtrap-mandrill-alternative/)
- [Amazon SES alternative](https://mailtrap.io/mailtrap-amazon-ses-alternative/)
- [Mailgun migration](https://mailtrap.io/mailgun-migration/)
- [Amazon SES migration](https://mailtrap.io/amazon-ses-migration/)
- [Mandrill migration](https://mailtrap.io/mandrill-migration/)
- [SendGrid migration](https://mailtrap.io/sendgrid-migration/)
- [Email Sending](https://mailtrap.io/email-sending/)
- [Email API](https://mailtrap.io/email-api/)
- [Email Sandbox](https://mailtrap.io/email-sandbox/)
- [Fake SMTP Server](https://mailtrap.io/fake-smtp-server/)
- [Testing API](https://mailtrap.io/automated-email-testing/)
- [QA Automation](https://mailtrap.io/qa-automation/)
- [Mailtrap Blog](https://mailtrap.io/blog/)
- [Changelog](https://mailtrap.io/changelog/)
- [HTML Checker](https://mailtrap.io/html-email-checker/)


## Case Studies

- [How The Software House Approaches Email Development](https://mailtrap.io/case-studies/the-software-house/)
- [How Calendly Streamlines Email Testing with Mailtrap](https://mailtrap.io/case-studies/calendly/)
- [How Kinsta's Developers, Designers, and QAs Collaborate On Emails](https://mailtrap.io/case-studies/kinsta/)


## Integrations

- [Supabase](https://mailtrap.io/integrate-with/supabase/)
- [n8n.io](https://mailtrap.io/integrate-with/n8n/)
- [Make](https://mailtrap.io/integrate-with/make/)
- [Mailtrap MCP Server](https://mailtrap.io/integrate-with/mcp-server/)
- [APIs and SDKs](https://mailtrap.io/integrate-with/apis-and-sdks/)
- [Heroku](https://mailtrap.io/integrate-with/heroku/)
- [Zapier](https://mailtrap.io/integrate-with/zapier/)