The Email Marketing Glossary

Your guide to all the acronyms and terms in the email world you always wanted. A project from Jason Rodriguez, The Better Email, and a bunch of email friends. Contribute on GitHub.

Bounce (Hard)

An email that failed to deliver permanently, usually because the email address no longer exists. High bounce rates can be dangerous for deliverability.

Removing hard bounces should be a part of your ongoing list hygiene strategy.

Additional Resources