Email delivery errors

When sending emails, you may occasionally encounter delivery issues that prevent your messages from reaching recipients. These errors can occur for various reasons, from invalid email addresses and mailbox restrictions to temporary server problems or security policies on the recipient side.

To help you troubleshoot more efficiently, we categorize delivery issues into several types, such as dropped, bounced, and system errors. Each category includes clear explanations and steps you can take to resolve the issue.

For a full breakdown of each error type and examples, refer to the Email error codes section.