Understanding "Address Not Found" (Hard Bounce) Issues

Learn why "Address Not Found" (hard bounce) issues occur and how AI Piping handles these naturally occurring events.

Understanding "Address Not Found" (Hard Bounce) Issues
Adam Palicz
May 5, 2024

What Is a Hard Bounce?A hard bounce occurs when an email cannot be delivered to the recipient due to a non-existent or invalid email address. Clients sometimes get concerned when the system appears to repeatedly attempt to send emails despite a hard bounce.

Why Multiple Emails Are Received After a Hard BounceThese repeated attempts are not generated by us, but instead by the email service provider (ESP). If a recipient's address is temporarily unavailable, the ESP may attempt delivery several times at intervals before finally accepting that the email is undeliverable.

How AI Piping Handles Hard BouncesWhile AI Piping takes every possible step to ensure high-quality leads, including a second round of email verification, it's impossible to completely eliminate bounces. This occurrence is a natural part of cold email campaigns and should not be alarming.

To learn more about how to handle and understand bounce rates, check out our detailed article on bounce rates