Mailtrap Blog: The Best Content About Emails

Top Email Sending and Testing Resources

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

Email Deliverability Monitoring: The Signals That Move Before Your Bounce Rate Does

On October 09, 2026

13min read

Learn which email deliverability signals warn you before bounce rates spike: data sources, latency, alert thresholds, and a 30-minute incident response plan.

Antonio Gabrić

Outreach Manager @ Hunter

What Is Email Routing and How Does It Work?

On October 07, 2026

8min read

Learn everything you need to know about email routing and find out how to set it up.

Ivan Djuric

Technical Content Writer @Mailtrap

This is a symbolic graphic representation of how to receive email in Python for an article that covers the topic in detail.

Python Receive Email: How to Read and Parse Incoming Email

On October 06, 2026

18min read

Receive email in Python using Mailtrap's Inbound Email API (default method), IMAP polling, or your own SMTP server. Code included.

Veljko Ristić

Content Manager @Mailtrap

This is a symbolic graphic representation of receiving email with PHP and Laravel for an article that covers the topic in detail.

PHP Receive Email: How to Receive and Parse Incoming Email in PHP and Laravel

On October 02, 2026

20min read

Receive email in PHP using Mailtrap's Inbound Email API (default method), IMAP/POP3 polling, or an MTA pipe-to-script. Code included.

Veljko Ristić

Content Manager @Mailtrap

This is a symbolic graphic representation of inbound emails with C# for an article that covers the topic in detail.

C# Receive Email: Build an Inbound Handler in ASP.NET Core

On September 23, 2026

14min read

Learn how to receive email in C# using Mailtrap Inbound Email, MailKit, Microsoft Graph, or Gmail. Code included.

Veljko Ristić

Content Manager @Mailtrap

This is a symbolic graphic representation of best email API for Node.js article that covers the topic in detail.

6 Best Email API for Node.js Developers Tested & Compared

On September 16, 2026

20min read

I compared 6 best email APIs for Node.js developers on SDK quality, framework compatibility, flexibility, email infrastructure, pricing, and more.

Yevhenii Odyntsov

Content @Mailtrap

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How to Set up Salesforce Email Relay: Full Guide with Examples

On September 02, 2026

11min read

Find out what is a Salesforce email relay, how it works, its limitations, and how to set it up properly. Click here.

Veljko Ristić

Content Manager @Mailtrap

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

On August 31, 2026

27min read

Check out our list of 8 best email APIs for developers and choose the best option according to your specific requirements and needs.

Ivan Djuric

Technical Content Writer @Mailtrap

How to Send Emails in Salesforce

On August 31, 2026

23min read

Find out how to send emails from Salesforce using Lightning Experience, Salesforce Classic, Flow, and more. Click here.

Ketevan Bostoganashvili

Technical Content Writer @Mailtrap

Salesforce Email Integration: Gmail, Outlook and Office 365

On August 29, 2026

7min read

Looking to streamline your business communication? This article provides step-by-step instructions on integrating Salesforce with Outlook and Gmail, enhancing your CRM processes, and uncovering the potential benefits and limitations of each.

Yevhenii Odyntsov

Content @Mailtrap

Salesforce Email Automation 101 – Examples, Tips, and Tricks

On August 29, 2026

11min read

Find out how to set up Salesforce email automation: email sending limits, tools, and alternatives.

Veljko Ristić

Content Manager @Mailtrap

This image is a symbolic graphic representation of the mass emails in Salesforce for an article that covers detailed tutorials on the topic

Salesforce Mass Email – How to Send and Test

On August 27, 2026

19min read

Find out how to send mass email from Salesforce, Lightning Experience, and using Batch Apex. Email testing is also covered.

Yevhenii Odyntsov

Content @Mailtrap

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How to Test Emails in Salesforce with Mailtrap Email Sandbox

On August 31, 2026

11min read

Find out how to test emails in Salesforce using Mailtrap: email deliverability, email templates, email alerts, and more!

Ketevan Bostoganashvili

Technical Content Writer @Mailtrap

Salesforce Mass Email – How to Send and Test

On August 27, 2026

19min read

Find out how to send mass email from Salesforce, Lightning Experience, and using Batch Apex. Email testing is also covered.

Yevhenii Odyntsov

Content @Mailtrap

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

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

6 Best Inbound Email APIs Compared: Testing the Receiving Side

On September 07, 2026

24min read

I tested 6 inbound email API on parsing, webhooks, attachments, agent-readiness & receiving pricing. See the current results.

Veljko Ristić

Content Manager @Mailtrap

How to Set up Salesforce Email Relay: Full Guide with Examples

On September 02, 2026

11min read

Find out what is a Salesforce email relay, how it works, its limitations, and how to set it up properly. Click here.

Veljko Ristić

Content Manager @Mailtrap

Salesforce Email Tracking – Full Tutorials, Tips, and Tricks

On August 28, 2026

14min read

Find out what is Salesforce email tracking, how it works, and how to set it up in Salesforce Classic and Lightning, and use 3rd party tools.

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

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

On August 11, 2026

36min 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 9 Email Marketing Agencies Reviewed

On June 29, 2026

19min read

I’ve reviewed 9 best email marketing agencies on pricing, services, case studies, testimonials, and more.

Veljko Ristić

Content Manager @Mailtrap

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9 Best Responsive HTML Email Builders for Your Next Campaign

On September 08, 2026

9min read

Choosing a tool for painless building of responsive email templates? We selected 9 options for you and prepared a comparison table for you to get the full picture.

Oleksii Ianchuk

Product Lead @ Mailtrap

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

21min 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

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This is a symbolic graphic representation of email marketing for insurance agents for an article that covers the topic in detail

Email Marketing for Insurance Agents: A Step-by-Step Guide

On September 10, 2026

11min read

Learn how to get your email marketing for insurance agents up and running: best practices, hidden pitfalls, examples. Ideal for beginners.

Emily Ahearn

Outreach Specialist @kustomerxperience

SaaS Email Marketing: A Go-to Guide for Beginners

On September 01, 2026

18min read

Leverage email marketing to boost conversions and keep customers coming back to use your SaaS product can be a challenge. Discover how powerful strategies for creating email campaigns convert subscribers to loyal customers and make this challenge less complicated.

Denys Kontorskyy

Technical Content Writer @Mailtrap

+1 more author

Comparing Email Marketing vs Marketing Automation: A Deep Dive into Effective Campaign Strategy

On August 31, 2026

6min read

We compared email marketing vs marketing automation and described 5 key differences. Find out more here.

Veljko Ristić

Content Manager @Mailtrap

Salesforce Email Automation 101 – Examples, Tips, and Tricks

On August 29, 2026

11min read

Find out how to set up Salesforce email automation: email sending limits, tools, and alternatives.

Veljko Ristić

Content Manager @Mailtrap

How to Get the Best out of Salesforce Email Marketing

On August 29, 2026

10min read

Find out how to run Salesforce email marketing in the right way: a step-by-step guide on how to launch an email marketing process.

Veljko Ristić

Content Manager @Mailtrap

Salesforce Email Tracking – Full Tutorials, Tips, and Tricks

On August 28, 2026

14min read

Find out what is Salesforce email tracking, how it works, and how to set it up in Salesforce Classic and Lightning, and use 3rd party tools.

Veljko Ristić

Content Manager @Mailtrap

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What are webhooks and how to use them

On September 15, 2026

3min read

Webhooks are a popular API concept to automatically send information (or messages) from one app (endpoint) to another. More specifically, […]

Veljko Ristić

Content Manager @Mailtrap

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

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Blog

Email Deliverability Monitoring: The Signals That Move Before Your Bounce Rate Does

What Is Email Routing and How Does It Work?

Python Receive Email: How to Read and Parse Incoming Email

PHP Receive Email: How to Receive and Parse Incoming Email in PHP and Laravel

C# Receive Email: Build an Inbound Handler in ASP.NET Core

6 Best Email API for Node.js Developers Tested & Compared

How to Set up Salesforce Email Relay: Full Guide with Examples

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

How to Send Emails in Salesforce

Salesforce Email Integration: Gmail, Outlook and Office 365

Salesforce Email Automation 101 – Examples, Tips, and Tricks

Salesforce Mass Email – How to Send and Test

How to Test Emails in Salesforce with Mailtrap Email Sandbox

Salesforce Mass Email – How to Send and Test

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

6 Best Inbound Email APIs Compared: Testing the Receiving Side

How to Set up Salesforce Email Relay: Full Guide with Examples

Salesforce Email Tracking – Full Tutorials, Tips, and Tricks

What is an Email API?

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

Best 9 Email Marketing Agencies Reviewed

9 Best Responsive HTML Email Builders for Your Next Campaign

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

Email Marketing for Insurance Agents: A Step-by-Step Guide

SaaS Email Marketing: A Go-to Guide for Beginners

Comparing Email Marketing vs Marketing Automation: A Deep Dive into Effective Campaign Strategy

Salesforce Email Automation 101 – Examples, Tips, and Tricks

How to Get the Best out of Salesforce Email Marketing

Salesforce Email Tracking – Full Tutorials, Tips, and Tricks

What are webhooks and how to use them

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

Your email workflows deserve more love