Tips for your subject lines + Why AMP failed

April 23, 2025 |
Keenen Charles

This week, we're sharing tips on how to improve your subject lines with examples and deliverability best practices you should definitely implement. And there's a great article on the history of Google's project for interactive email.

Also the featured newsletters this week cover coding, baseball cards, bodybuilding, and more.

📰 News & Articles

The 177 Best Email Subject Lines & Templates

A collection of the best email subject lines and templates to help you improve your open rates.

AMP and why emails are not (and should never be) interactive.

An interesting look at the history of AMP and why the author believes it was never a good idea for email.

How to use social proof in email marketing

A guide to using social proof in your email marketing to increase conversions and engagement.

18 effective strategies to improve email deliverability in 2025

A comprehensive guide to improving email deliverability in 2025, including best practices and strategies.

⭐ Featured Newsletters

System Design Newsletter

Helping you pass system design interviews

Beyond Code: System Design and More

Deep dives into system design and software architecture

Muscle Radar

Bodybuilding News, Byte-Sized To Your Inbox

Baseball Cards Daily Newsletter

You need more silly baseball card nostalgia in your life.

See Ya

This is our weekly newsletter covering tips and tools for newsletter operators and everything else happening in the email newsletter space. Hope you enjoyed it!

Keenen Charles

Keenen is the creator of InboxReads and a believer in the future of newsletters and email for sharing great content.

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