Mailtrap Blog: The Best Content About Emails

Top Email Sending and Testing Resources

Warm Lead Email Template: Tips and Best Practices

On February 14, 2025

8min read

Learn what warm email leads are and pick up one of 3 tested warm lead email templates to use in your next email marketing campaign

Olena Spenei

Content writer

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

On February 13, 2025

17min 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

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

On February 13, 2025

14min read

We compared 6 B2B email marketing software on email deliverability, email personalization, automations, integrations, and more. Click here.

Yevhenii Odyntsov

Content @Mailtrap

What Types of Emails are There? A Breakdown of Transactional and Marketing Emails with Examples

On February 06, 2025

9min read

Learn what types of emails are there: transactional or user-triggered and marketing emails explained with examples. Click here.

Daria Roshchyna

Technical Content Writer @Mailtrap

Lawyers Email Marketing: A Go-to Guide for Beginners

On February 05, 2025

13min read

Learn how to successfully launch lawyers email marketing: a step-by-step guide with examples, software, and best practices. Click here.

Amanda E. Clark

Contributing writer to LLC University

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

Email Marketing Lead Generation: Definitions, Examples, and Strategies

On February 05, 2025

19min read

Find out what email marketing lead generation is and how to do it right in our in-depth tutorial.

Veljko Ristić

Content Manager @ Mailtrap

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This is a symbolic graphic representation of B2B email marketing lead generation for an article that covers the topic in detail.

How to Use B2B Email Marketing for Lead Generation

On January 20, 2025

12min read

Learn what lead generation in B2B email marketing means and how to launch B2B email marketing for lead nurturing right: framework and tools.

Veljko Ristić

Content Manager @ Mailtrap

SMTP Providers Compared: Choose the Best One for Sending Transactional and Marketing Emails

On January 17, 2025

12min read

We compared 7 SMTP providers to find the best option for sending transactional and marketing emails. You can see the results here.

Denys Velykozhon

Marketing Lead @Railsware

+1 more author

The Ultimate Guide to Mailchimp Transactional Email (Mandrill) Alternatives

On January 13, 2025

8min read

I compared 5 Mailchimp Transactional Email (Mandrill) alternatives on email deliverability, pricing, ease of integrations, and more. Find out the results.

Veljko Ristić

Content Manager @ Mailtrap

This is the featured image for an article on sending emails in Java

How to Send Emails in Java using SMTP and email API: A Step-by-Step Guide

On January 08, 2025

27min read

Learn Jakarta Mail (a.k.a. JavaMail) to send emails from Java apps and explore the alternatives (Spring Framework, Apache Commons Email, and Simple Java Mail).

Ivan Djuric

Technical Content Writer @Mailtrap

How to Send Email in Python: SMTP & Email API Methods Explained

On January 07, 2025

24min read

This tutorial will guide you through the most essential steps of sending and testing emails in Python. You will learn how to send HTML email, add images, attachments, and more.

Aleksandr Varnin

Full Stack Developer @ Railsware

+1 more author

Choosing the Best Transactional Email Service

On January 05, 2025

12min read

We compared 8 transactional email service providers to find the best-performing option.

Ketevan Bostoganashvili

Technical Content Writer @Mailtrap

+1 more author

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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

Email Client Testing Explained

On September 02, 2024

11min read

Learn how to test emails in different email clients using Mailtrap, Litmus, Email on Acid, and more.

Diana Lepilkina

Content Specialist @Mailtrap

+1 more author

SMTP Server for Testing: Cloud-based or Local?

On August 27, 2024

5min read

How would you approach choosing an SMTP server for testing? Find the key factors to consider in this blog post.

Yevhenii Odyntsov

Content @Mailtrap

How to Automate Email Verification in Selenium

On August 09, 2024

9min read

Selenium can be a great tool for testing your email verification process. We describe how to set everything up in a few simple steps.

Aleksandr Varnin

Full Stack Developer @ Railsware

SendGrid Sandbox Mode Explained

On July 31, 2024

4min read

SendGrid offers a sandbox mode you can use to test your emails. We analyze how it works and give suggestions on proper email testing with SendGrid.

Oleksii Ianchuk

Product Lead @ Mailtrap

How to Test Emails in PHP using PHPMailer, Symfony Mailer, and Pear Mailer, and mail() function with Fake SMTP

On July 11, 2024

10min read

Learn how to test emails in PHP: PHPMailer, Pear Mailer, Symfony Mailer, and mail() using Mailtrap. Test email deliverability, content, spam score, and more.

Diana Lepilkina

Content Specialist @Mailtrap

+1 more author

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What Is Secure Email Server & How Does It Work?

On February 04, 2025

9min read

Learn what a secure email server means, the role of email security, and how to make your email server secure. Click here.

Eric Wahlquist

Senior Content Marketing Manager

Webhooks Explained

On January 29, 2025

9min read

Find out what the catch with webhook is through in-depth explanations, real-case examples, and detailed how-tos!

Ivan Djuric

Technical Content Writer @Mailtrap

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

SMTP Providers Compared: Choose the Best One for Sending Transactional and Marketing Emails

On January 17, 2025

12min read

We compared 7 SMTP providers to find the best option for sending transactional and marketing emails. You can see the results here.

Denys Velykozhon

Marketing Lead @Railsware

+1 more author

This is a cover image for an article that explains SMTP Protocol in detail

SMTP: The Protocol Behind Email Delivery – What Is It and How Does It Work

On January 15, 2025

9min read

Learn all the ins and outs of SMTP protocol, including its components, operation, and importance. Click here.

Diana Lepilkina

Content Specialist @Mailtrap

SMTP Relay: What Is It, How It Works, and Role in Email Deliverability

On January 12, 2025

6min read

SMTP relay is one of the key elements behind the delivery of nearly every email. Learn what it is, how it works, and whether you should invest in one.

Piotr Malek

Technical Content Writer @ 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

10min 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

Load More Posts

Warm Lead Email Template: Tips and Best Practices

On February 14, 2025

8min read

Learn what warm email leads are and pick up one of 3 tested warm lead email templates to use in your next email marketing campaign

Olena Spenei

Content writer

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

On February 13, 2025

17min 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

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

On February 13, 2025

14min read

We compared 6 B2B email marketing software on email deliverability, email personalization, automations, integrations, and more. Click here.

Yevhenii Odyntsov

Content @Mailtrap

What Types of Emails are There? A Breakdown of Transactional and Marketing Emails with Examples

On February 06, 2025

9min read

Learn what types of emails are there: transactional or user-triggered and marketing emails explained with examples. Click here.

Daria Roshchyna

Technical Content Writer @Mailtrap

Lawyers Email Marketing: A Go-to Guide for Beginners

On February 05, 2025

13min read

Learn how to successfully launch lawyers email marketing: a step-by-step guide with examples, software, and best practices. Click here.

Amanda E. Clark

Contributing writer to LLC University

Email Marketing Lead Generation: Definitions, Examples, and Strategies

On February 05, 2025

19min read

Find out what email marketing lead generation is and how to do it right in our in-depth tutorial.

Veljko Ristić

Content Manager @ Mailtrap

Load More Posts

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

Mailtrap robot holds a certificate to indicate Mailtrap acquiring ISO certification

Mailtrap Is Now ISO Certified

On April 10, 2024

2min read

Mailtrap can now certify that we handle all the development processes in accordance with ISO standards. Learn what this means in this article.

Ketevan Bostoganashvili

Technical Content Writer @Mailtrap

Now Mailtrap Customers Can Test Email Templates via API

On March 26, 2024

1min read

We’ve introduced Email Testing API for Email Templates. Learn what this means and get all the information about its benefits here.

Ketevan Bostoganashvili

Technical Content Writer @Mailtrap

Using Handlebars with Mailtrap Email Templates | Quick Guide with Examples

On February 14, 2023

6min read

Need to add some helpers to your email templates? Learn how to use Handlebars with Mailtrap to customize your emails.

Veljko Ristić

Content Manager @ Mailtrap

ActionMailer Balancer: Keeping the Email Sending Equilibrium

On December 21, 2022

4min read

Mailtrap ActionMailer Balancer is an ActionMailer extension that allows proportionally distributing the email sending load between two different sending services and mitigating the sending risks.

Viktoriia Ivanenko

Technical Content Writer @ Mailtrap

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Blog

Warm Lead Email Template: Tips and Best Practices

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

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

What Types of Emails are There? A Breakdown of Transactional and Marketing Emails with Examples

Lawyers Email Marketing: A Go-to Guide for Beginners

Email Marketing Lead Generation: Definitions, Examples, and Strategies

How to Use B2B Email Marketing for Lead Generation

SMTP Providers Compared: Choose the Best One for Sending Transactional and Marketing Emails

The Ultimate Guide to Mailchimp Transactional Email (Mandrill) Alternatives

How to Send Emails in Java using SMTP and email API: A Step-by-Step Guide

How to Send Email in Python: SMTP & Email API Methods Explained

Choosing the Best Transactional Email Service

Email Blacklists Explained: Causes, Solutions, Prevention

Email Client Testing Explained

SMTP Server for Testing: Cloud-based or Local?

How to Automate Email Verification in Selenium

SendGrid Sandbox Mode Explained

How to Test Emails in PHP using PHPMailer, Symfony Mailer, and Pear Mailer, and mail() function with Fake SMTP

What Is Secure Email Server & How Does It Work?

Webhooks Explained

Email Blacklists Explained: Causes, Solutions, Prevention

SMTP Providers Compared: Choose the Best One for Sending Transactional and Marketing Emails

SMTP: The Protocol Behind Email Delivery – What Is It and How Does It Work

SMTP Relay: What Is It, How It Works, and Role in Email Deliverability

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

Warm Lead Email Template: Tips and Best Practices

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

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

What Types of Emails are There? A Breakdown of Transactional and Marketing Emails with Examples

Lawyers Email Marketing: A Go-to Guide for Beginners

Email Marketing Lead Generation: Definitions, Examples, and Strategies

Now You Can Send Targeted Campaigns with Mailtrap Contacts

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

Mailtrap Is Now ISO Certified

Now Mailtrap Customers Can Test Email Templates via API

Using Handlebars with Mailtrap Email Templates | Quick Guide with Examples

ActionMailer Balancer: Keeping the Email Sending Equilibrium

Your email workflows deserve more love