Disabling the bounce message for a delayed Reject action
If, as a result of the scan, the Reject action is applied to the message, the following options are possible:
If the Reject action is applied during an SMTP session, the application sends the appropriate error code to the sender mail server, and the mail server sends a bounce message to the sender's email address.
If the Reject action is applied when the SMTP session is already over, the application handles the sending of the bounce message to the sender's email address.
The Reject action is applied after the end of the SMTP session in the following cases:
Different actions need to be applied to the message for different recipients, one of the actions being Reject.
The message was placed in the Anti-Spam Quarantine for further scanning, and the final action decided upon after the scan was Reject.
A Backup location where email messages are temporarily kept if the Anti-Spam module is unable to assign a final status after a scan.
The message was placed in the KATA quarantine for further scanning, and the final action decided upon after the scan was Reject.
You can disable the sending of a bounce message by the application after the end of the SMTP session.
To disable the sending of a bounce message for a delayed Reject action after the end of the SMTP session:
In the main window of the application web interface, select the Settings → General → Message processing section.
Under Non-delivery report (NDR) in case of delayed Reject action, turn off the Send NDR for messages rejected after the end of SMTP session toggle switch.
By default, the sending of a bounce message is enabled.
The sending of a bounce message for a delayed Reject action after the end of the SMTP session is disabled. The rejected message is deleted and the sender of the message does not receive a bounce message.