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Top Email Sending and Testing Resources

How to Embed HTML5 Video in Email

On June 23, 2022
9min read
Viktoriia Ivanenko Technical Content Writer @ Mailtrap

Email deliverability: Everything you need to know

On September 07, 2022
17min read
Many factors have an impact on whether an email will be delivered or not. Check out what to do and what to avoid to always be on the winning side!
Piotr Malek Technical Content Writer @ Mailtrap

SPF Record Explained

On February 07, 2022
9min read
SPF (Sender Policy Framework) record is a DNS record to protect your emails from being forged. Find out more about the SPF to increase the credibility of your product.
Zakhar Yung Technical Content Writer @Mailtrap

Difference Between IMAP, POP3, and SMTP Email Protocols

On August 01, 2019
7min read
SMTP is a protocol to send emails, while POP3 and IMAP are meant to receive electronic messages. Learn more about email protocols to know which one to use
Yevgen Tsvetukhin Product Manager @Mailtrap

Ultimate Guide to Email Authentication

On July 09, 2020
11min read
In this ultimate guide, we cover all available email authentication methods, such as SPF, DKIM, and others. We also share detailed examples for each one.
Piotr Malek Technical Content Writer @ Mailtrap

Everything You Need to Know About SMTP Security

On August 14, 2019
10min read
SMTP by its nature is not secured in any way, surprisingly. Luckily there are ways to keep your emails safe with no or little effort.
Piotr Malek Technical Content Writer @ Mailtrap

STARTTLS vs SSL vs TLS

On October 08, 2019
5min read
With so many similar names, it's not hard to get confused. Check out our latest guide to email encryption.
Piotr Malek Technical Content Writer @ Mailtrap

How to Test Emails in PHP

On May 28, 2020
6min read
Let’s discuss how to test and preview emails in your PHP app or website during development!
Diana Lepilkina Content Specialist @Mailtrap

SMTP Server for Testing: Cloud-based or Local?

On September 27, 2018
4min read
How would you approach choosing an SMTP server for testing? Find the key factors to consider in this blog post.
Diana Lepilkina Content Specialist @Mailtrap

How to Test Emails in Mandrill, Sendgrid, and Mailgun

On May 21, 2019
6min read
Learn about the options for quality email testing proposed by each of listed sending providers and decide whether a third-party dedicated testing service will be the right choice.
Yevgen Tsvetukhin Product Manager @Mailtrap

Sendgrid vs Mandrill vs Mailgun – How to Choose?

On April 29, 2019
10min read
Which features of the email service provider matter the most? Let’s review and compare Sendgrid, Mandrill, and Mailgun, the most popular email services.
Yevgen Tsvetukhin Product Manager @Mailtrap

11 Tips to Improve Your Email Marketing in 2021

On November 30, 2020
9min read
The new year can be an excellent opportinity for improving your email marketing. Our friends from HubSpot share what to focus on in 2021.
Irina Nica Senior Marketing Manager @Hubspot

Intro to Transactional Emails

On August 28, 2019
11min read
Transactional emails are an inseparable part of any customer experience, for a reason! Learn what they’re used for and how to make yours better in no time.
Piotr Malek Technical Content Writer @ Mailtrap

Private: What Makes Mailtrap a Unique Email Testing Tool?

On January 28, 2020
4min read
Test Bcc, preview messages, inspect HTML errors right away, and conduct other crucial email checks in one tool. Yes, that’s all about Mailtrap, a simple but super powerful tool for safe email testing.
Diana Lepilkina Content Specialist @Mailtrap

Share Your Email Testing Results with Team Members

On July 03, 2019
3min read
Learn how Mailtrap can help you increase the efficiency of your email testing process. Features for organizing your test data and sharing results with your colleagues and clients are explained in this post.
Yevgen Tsvetukhin Product Manager @Mailtrap

Using and Testing Cc and Bcc in SMTP Protocol

On August 28, 2019
5min read
Referring to the SMTP mechanics, we define the main email headers and the Bcc specific in this post. We also share a few email tips and explain how you can test Bcc with Mailtrap.
Yevgen Tsvetukhin Product Manager @Mailtrap

The Latest Posts

DKIM Explained

On November 21, 2022
9min read
DKIM is the gold standard for verifying the sender of an email message, and to confirm the message was not altered in transit. Learn why you should use it and how it actually works.
Piotr Malek Technical Content Writer @ Mailtrap

Send and Receive Emails in C#

On November 08, 2022
10min read
Find out how to send plain text or HTML emails with attachments in C# using the built-in .NET SMTP library, MailKit library, or Mailtrap Email API.
Dzenana Kajtaz Technical Content Writer @Mailtrap

How to Send Emails in Java: 2022 Guide

On October 18, 2022
14min read
This post will introduce main options for sending emails from Java apps. While Java Mail (which is now Jakarta Mail) is the main package, Simple Java Mail, Spring Framework, and Apache Commons Email also deserve your attention. See the code samples to understand which one works for you.
Diana Lepilkina Content Specialist @Mailtrap

Send and Receive Emails in ASP.NET C#

On October 18, 2022
10min read
When building software in ASP.NET, sooner or later you'll need to figure out how to send emails from your platform. We're covering various scenarios for you.
Piotr Malek Technical Content Writer @ Mailtrap