Back to main menu

Mailgun blog

Email

Helpful articles to optimize your email program.

What is an email MTA? A guide to mail transfer agents

In this guide, we’ll cover everything from the MTA basics to advanced strategies for building modern email infrastructure. Plus, we’ll give you actionable tips and ...

Read More

Why accessibility in email isn’t optional anymore

Accessibility matters, not just because of legal requirements like the upcoming EAA (don’t worry, we’ll explain), but because it's the right thing to do. We’re recapping our latest episode of

Emails Not Dead...

Read More

The golden age of scammers: AI-powered phishing

Long live the prince of Nigeria, he had a good run. Gone is the age where scammers wield the same mediocre power as a snake oil salesman, reliant on their own persuasion and...

Read More

Help! My email needs a correction: What to do after you’ve already hit send

Whether you’re a seasoned pro or a first time sender, if you send emails chances are you’ve experienced the regret of the send button. You thought it was a flawless email, so...

Read More

The 7 best email verification tools (and why devs choose Mailgun)

When it comes to email, deliverability isn’t just a “nice-to-have” it’s mandatory - especially since inbox providers are enforcing stricter requirements. If you’re sending to bad email addresses, you’re risking your sender reputation, delivery rates, and ultimately...

Read More

Email icon

Keep me posted! Get the latest from Mailgun delivered to your inbox.

Send me the newsletter. I expressly agree to receive the newsletter and know that I can easily unsubscribe at any time.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Why DMARC matters more than ever: Email’s Not Dead season 6 ep. 1 recap

Email authentication has been a foundational part of email deliverability for years. But 2024 marked a turning point, as mailbox providers like Gmail and Yahoo began enforcing stricter requirements for bulk senders. The latest episode of

Emails Not Dead

explores what’s next for senders...

Read More

The 5 best email API services in 2025

In 2025, email APIs are critical for businesses aiming to automate large-scale communications while ensuring top-notch deliverability and compliance. Developers and marketers alike need solutions with reliable infrastructure, developer-friendly tools, and integrations to support...

Read More

Which SMTP port should I use? Understanding ports 25, 465 & 587

It's a common question that we receive here at Sinch Mailgun about SMTP port numbers. To ensure connectivity to our Simple Mail Transfer Protocol (SMTP) endpoint, Mailgun...

Read More

The best email APIs in-depth review and comparison

In 2025, email APIs have become indispensable for businesses looking to streamline their communication processes. These APIs not only automate sending and tracking emails but also ensure high deliverability and compliance with global standards. Whether you're a developer or marketer, the right email API can significantly...

Read More

How to optimize your email strategy for 2025

Email is the digital cornerstone of communications between brands and consumers. Yet in 2025, ensuring emails reach the inbox – not just get sent – is more challenging than ever. Evolving mailbox provider rules...

Read More

See what you can accomplish with the world's best email delivery platform. It's easy to get started.Let's get sending
CTA icon