Mailtrap Blog: The Best Content About Emails

Top Email Sending and Testing Resources

This is a symbolic graphic representation of inbound email for an article that covers the topic in detail.

What Is Inbound Email? A Beginner’s Guide to Receiving, Parsing & Routing Incoming Email

On August 28, 2026

9min read

Learn what is inbound email, how receiving, parsing, and routing incoming email works, its use cases, and how to set it up.

Veljko Ristić

Content Manager @Mailtrap

This is a symbolic grahic representation of ecommerce email campaign ideas for an article that covers the topic in detail

8 Ecommerce Email Campaign Ideas That Drive Repeat Purchases

On August 27, 2026

7min read

Getting a customer to buy from you once is tough enough. Getting them to come back for another purchase can […]

Rushali Das

Content Writer @Rankingbell

I Tested 12 Best Email Verification Tools: My Findings

On August 27, 2026

20min read

We tested several email verification tools and picked 12 great options worth giving a try.

Dzenana Kajtaz

Technical Content Writer @Mailtrap

What is an Email API?

On August 27, 2026

10min read

Learn what an email API is, how to use it, and why you need it for both side and major projects, all in this article.

Dzenana Kajtaz

Technical Content Writer @Mailtrap

8 Best Email APIs for AI Agents Tested & Compared: Here’s What I Found

On August 11, 2026

30min read

Find out which email APIs for AI agents give you the most advanced features and have the best email/price ratio!

Ivan Djuric

Technical Content Writer @Mailtrap

This is a symbolic graphic representation of best email workflow automation tools for an article that covers the topic in detail.

Best Email Workflow Automation Tools for Multi-Channel Campaigns

On July 31, 2026

5min read

Compare the best multi-channel email workflow automation tools. Evaluate APIs, security, integrations, and developer features.

Stefano Iavarone

Creative Strategist & Email List Copywriter

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8 Best Email APIs for AI Agents Tested & Compared: Here’s What I Found

On August 11, 2026

30min read

Find out which email APIs for AI agents give you the most advanced features and have the best email/price ratio!

Ivan Djuric

Technical Content Writer @Mailtrap

6 Best Email API Services For Developers Tested & Compared: Here’s What I Found

On July 23, 2026

22min read

Check out our list of 5 best email APIs for developers and choose the best option according to your specific requirements and needs.

Ivan Djuric

Technical Content Writer @Mailtrap

6 Best Transactional Email Services Compared: Here’s What I Found

On June 11, 2026

16min read

Find out which is the best transactional email service provider based on comparison of deliverability, reliability, scalability, and more.

Ketevan Bostoganashvili

Technical Content Writer @Mailtrap

+1 more author

How to Combine Social Media and Email Marketing for Maximum Reach

On May 14, 2026

6min read

Learn 10 actionable ways to integrate social media and email marketing to amplify your brand voice.

Afirah Shaikh

Content Marketer @ Social Champ

This is a symbolic graphic representation of best email API for Python developers for an article that covers the topic in detail.

5 Best Email API for Python Developers Tested & Compared

On January 30, 2026

12min read

I compared 5 best email APIs for Python developers on SDK quality, framework compatibility, flexibility, email infrastructure, pricing, and more.

Yevhenii Odyntsov

Content @Mailtrap

This is a symbolic graphic representation of WordPress contact forms for an article that covers the topic in detail.

How to Create a WordPress Contact Form: With or Without Plugin, Add Form Validation, and Set Up Email Sending

On January 09, 2026

14min read

Learn how to create and add a WordPress contact form to your website with or without a plugin in our in-depth tutorial.

Veljko Ristić

Content Manager @Mailtrap

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The Mega List of Best Email Testing Tools

On July 07, 2026

12min read

Learn more about the 22 best email testing tools in 2026. Test email deliverability, spam, content, subject line, and more!

Veljko Ristić

Content Manager @Mailtrap

This is a featured image for blog post on subject line testers

7 Subject Line Testers Tried & Compared: Here’s What I Found

On January 20, 2026

10min read

I’ve compared 5 subject line testers based on quality of results, ease of use, price, features, and more - find out what works best for you.

Yevhenii Odyntsov

Content @Mailtrap

This is a featured image for a blog article on sending emails in WordPress

How to Send Emails in WordPress using Plugin, wp_mail() Function, and SMTP

On January 09, 2026

15min read

Learn how to send emails in WordPress: an overview of the options and a guide for each of them like wp_mail() and the SMTP plugin.

Veljko Ristić

Content Manager @Mailtrap

This is a cover image for an article that goes over in detail how to test emails in WooCommerce

How to Test Your WooCommerce Emails: Insights and Obstacles to Overcome

On December 09, 2025

4min read

Learn how to test your WooCommerce emails to ensure they display correctly, delivered reliably and error free.

Yevhenii Odyntsov

Content @Mailtrap

How to Test Email Deliverability: Process & Toolkit Explained

On March 24, 2025

12min read

Poor deliverability can cause some serious problems. Luckily, there are various free and paid tools for testing emails.

Piotr Malek

Technical Content Writer @ Mailtrap

+1 more author

This is a graphic representation of an email blacklist, for an article that covers the topic in detail.

Email Blacklists Explained: Causes, Solutions, Prevention

On January 24, 2025

9min read

Find out what an email blacklist is, how it works, what are the reasons to get blacklisted, and how to get off the blacklist and avoid it in the future.

Dzenana Kajtaz

Technical Content Writer @Mailtrap

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What Is Inbound Email? A Beginner’s Guide to Receiving, Parsing & Routing Incoming Email

On August 28, 2026

9min read

Learn what is inbound email, how receiving, parsing, and routing incoming email works, its use cases, and how to set it up.

Veljko Ristić

Content Manager @Mailtrap

What is an Email API?

On August 27, 2026

10min read

Learn what an email API is, how to use it, and why you need it for both side and major projects, all in this article.

Dzenana Kajtaz

Technical Content Writer @Mailtrap

8 Best Email APIs for AI Agents Tested & Compared: Here’s What I Found

On August 11, 2026

30min read

Find out which email APIs for AI agents give you the most advanced features and have the best email/price ratio!

Ivan Djuric

Technical Content Writer @Mailtrap

This is a symbolig graphic representation of searching for best email marketing agencies for an aticle that covers the topic in detail.

Best 8 Email Marketing Agencies Reviewed

On June 29, 2026

18min read

I’ve reviewed 8 best email marketing agencies on pricing, services, case studies, testimonials, and more.

Veljko Ristić

Content Manager @Mailtrap

This is a symbolic graphic representation of best email MCP servers for an article that covers the topic in detail

7 Best Email MCP Servers in 2026: Tested and Compared

On June 10, 2026

19min read

I evaluated Mailtrap, AgentMail, Mailgun, Brevo, Postmark, SendGrid, and Amazon SES against five verifiable criteria – official status, tool breadth, […]

Veljko Ristić

Content Manager @Mailtrap

What is an ESP or Email Service Provider? A Beginner’s Guide

On February 05, 2026

8min read

Find out what is an ESP or email service provider, how it differs from an email provider, get a list of popular ESPs, and learn how to choose a suitable provider.

Yevhenii Odyntsov

Content @Mailtrap

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HTML Character Entities: NBSP and HTML Spaces Explained

On February 04, 2025

10min read

&nbsp, or non-breaking space, is an HTML character used to create a space. We analyze when to use it and when to opt for other solutions.

Ivan Djuric

Technical Content Writer @Mailtrap

+1 more author

This image is a symbolic graphic representation of building HTML email template for an article that covers it in detail.

Responsive HTML Email Template Development: A Step-by-Step Guide for Email Developers

On December 20, 2024

8min read

Learn how to develop a custom responsive HTML email template from scratch that renders perfectly in every email client.

Veljko Ristić

Content Manager @Mailtrap

This image is a graphic representation of html vs plain text emails for an article that covers the topic in detail.

HTML vs Plain Text Email: What to Choose For Your Next Email Campaign?

On July 30, 2024

8min read

HTML vs plain text emails compared on performance, deliverability, ROI, and more! Click here to learn the details and decide on your next email campaign.

Veljko Ristić

Content Manager @Mailtrap

This image is a graphic representation of HTML email for an article that covers the topic in detail

HTML Email: A Complete Tutorial for Email Marketers, Designers, and Developers

On July 10, 2024

20min read

Learn what HTML email is, how to create HTML email from scratch or using templates and builders, best practices, and role of HTML in email deliverability.

Veljko Ristić

Content Manager @Mailtrap

Complete Tutorial on Mailto Links: What They Are & How to Use Them

On June 13, 2024

7min read

You can customize mailto links in many ways. We describe them all, give examples, and discuss whether mailto is the right approach.

Yevhenii Odyntsov

Content @Mailtrap

Here’s How You Add an Animated GIF to Your Email Signature

On May 25, 2024

7min read

Looking for ways to make your emails pop? This guide will show you how to add an animated GIF to your email signature.

Yevhenii Odyntsov

Content @Mailtrap

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8 Ecommerce Email Campaign Ideas That Drive Repeat Purchases

On August 27, 2026

7min read

Getting a customer to buy from you once is tough enough. Getting them to come back for another purchase can […]

Rushali Das

Content Writer @Rankingbell

Best Email Workflow Automation Tools for Multi-Channel Campaigns

On July 31, 2026

5min read

Compare the best multi-channel email workflow automation tools. Evaluate APIs, security, integrations, and developer features.

Stefano Iavarone

Creative Strategist & Email List Copywriter

This image is a symbolic graphic representation of inspiring email startups for an article that covers the topic in detail.

Email Startups Worth Your Attention in 2026

On June 19, 2026

17min read

The number of new email startups proves that email is on the rise again. In this post, we talk about inspiring email startups to follow. With the technologies, principles, and marketing strategy they use, they are able to bring email to a new level.

Yevhenii Odyntsov

Content @Mailtrap

11 B2B Email Marketing Software Tried, Tested, and Compared: Find Out The Best Pick for Your Company

On June 18, 2026

22min read

We compared 11 B2B email marketing software on email deliverability, email personalization, automations, integrations, and more. Click here.

Yevhenii Odyntsov

Content @Mailtrap

This graphics is a representation of best email marketing platforms for an article that covers the topic in detail.

Best 11 Email Marketing Platforms Compared: Find Out Which One Your Go-to Choice

On June 18, 2026

26min read

We compared 6 email marketing platforms on deliverability, scalability, reliability, pricing, features, user experience, and more - find out the most suitable.

Veljko Ristić

Content Manager @Mailtrap

11 Best Free Email Marketing Platforms Compared: Find Out Which One You Should Try

On June 18, 2026

24min read

We compared the best free email marketing platforms out there so you don't have to! Find out which ones made the cut!

Ivan Djuric

Technical Content Writer @Mailtrap

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API for Email Sending Stats: Track the Performance of Your Emails Directly from Your App/Project

On December 22, 2025

2min read

Learn more about Mailtrap's Email Sending Stats API, which lets you retrieve the stats of your sent emails without opening the UI.

Ivan Djuric

Technical Content Writer @Mailtrap

Manage Setups with Multiple Teams with Organization and Sub-Accounts

On October 07, 2025

1min read

Learn how to use Mailtrap’s latest feature to manage multiple accounts under a single organization, separate resources, streamline billing and permissions, and more.

Ivan Djuric

Technical Content Writer @Mailtrap

Mailtrap Releases Automations: Build Email Sequences Using Visual Blocks

On September 18, 2025

2min read

Find out all about latest feature: Automations. With it, you can build email sequences and workflows directly in Mailtrap's visual builder, no coding required!

Ivan Djuric

Technical Content Writer @Mailtrap

Let Your AI Agent Send Emails: Mailtrap MCP Server is Now Live!

On April 26, 2025

1min read

Find out what Mailtrap's very own MCP server can do if you leverage it with your AI IDE or personal AI assistant!

Ivan Djuric

Technical Content Writer @Mailtrap

Now You Can Send Targeted Campaigns with Mailtrap Contacts

On October 21, 2024

1min read

You can now use Mailtrap Contacts & Lists to organize your contacts into lists and send targeted campaigns. Learn more here.

Ketevan Bostoganashvili

Technical Content Writer @Mailtrap

New email templates with drag and drop builder

Improved Templates with Drag-and-Drop Editor, Simplified Integration Flow, and More

On July 03, 2024

2min read

Mailtrap extends Templates features with a new visual builder, easier integrations, and more. Learn what’s new here.

Ketevan Bostoganashvili

Technical Content Writer @Mailtrap

Load More Posts

Blog

What Is Inbound Email? A Beginner’s Guide to Receiving, Parsing & Routing Incoming Email

8 Ecommerce Email Campaign Ideas That Drive Repeat Purchases

I Tested 12 Best Email Verification Tools: My Findings

What is an Email API?

8 Best Email APIs for AI Agents Tested & Compared: Here’s What I Found

Best Email Workflow Automation Tools for Multi-Channel Campaigns

8 Best Email APIs for AI Agents Tested & Compared: Here’s What I Found

6 Best Email API Services For Developers Tested & Compared: Here’s What I Found

6 Best Transactional Email Services Compared: Here’s What I Found

How to Combine Social Media and Email Marketing for Maximum Reach

5 Best Email API for Python Developers Tested & Compared

How to Create a WordPress Contact Form: With or Without Plugin, Add Form Validation, and Set Up Email Sending

The Mega List of Best Email Testing Tools

7 Subject Line Testers Tried & Compared: Here’s What I Found

How to Send Emails in WordPress using Plugin, wp_mail() Function, and SMTP

How to Test Your WooCommerce Emails: Insights and Obstacles to Overcome

How to Test Email Deliverability: Process & Toolkit Explained

Email Blacklists Explained: Causes, Solutions, Prevention

What Is Inbound Email? A Beginner’s Guide to Receiving, Parsing & Routing Incoming Email

What is an Email API?

8 Best Email APIs for AI Agents Tested & Compared: Here’s What I Found

Best 8 Email Marketing Agencies Reviewed

7 Best Email MCP Servers in 2026: Tested and Compared

What is an ESP or Email Service Provider? A Beginner’s Guide

HTML Character Entities: NBSP and HTML Spaces Explained

Responsive HTML Email Template Development: A Step-by-Step Guide for Email Developers

HTML vs Plain Text Email: What to Choose For Your Next Email Campaign?

HTML Email: A Complete Tutorial for Email Marketers, Designers, and Developers

Complete Tutorial on Mailto Links: What They Are & How to Use Them

Here’s How You Add an Animated GIF to Your Email Signature

8 Ecommerce Email Campaign Ideas That Drive Repeat Purchases

Best Email Workflow Automation Tools for Multi-Channel Campaigns

Email Startups Worth Your Attention in 2026

11 B2B Email Marketing Software Tried, Tested, and Compared: Find Out The Best Pick for Your Company

Best 11 Email Marketing Platforms Compared: Find Out Which One Your Go-to Choice

11 Best Free Email Marketing Platforms Compared: Find Out Which One You Should Try

API for Email Sending Stats: Track the Performance of Your Emails Directly from Your App/Project

Manage Setups with Multiple Teams with Organization and Sub-Accounts

Mailtrap Releases Automations: Build Email Sequences Using Visual Blocks

Let Your AI Agent Send Emails: Mailtrap MCP Server is Now Live!

Now You Can Send Targeted Campaigns with Mailtrap Contacts

Improved Templates with Drag-and-Drop Editor, Simplified Integration Flow, and More

Your email workflows deserve more love