Learn how to interpret common Simple Mail Transfer Protocol (SMTP) response status codes that affect Symantec Email Security.cloud clients, including:
These codes and messages can occur under the following circumstances:
Email bounce backs occur when an email is sent to an Email Security.cloud client, and a rule is triggered by the email recipient's configuration.
Review the appropriate article for the message you're receiving for more information:
This error occurs when a sender attempts to send an email and any one of the following are true: