Auto-Submitted Header Errors

Problem

You see the following error message:

The system prevented an autoresponder from opening a ticket.

Cause

An email ticket reply contained the Auto-Submitted attribute in its headers. The system will not add these replies to support tickets in WHMCS. This avoids sending an auto-reply in accordance with the RFC 3834 email specification.

The system sends support emails with RFC 3834-compliant headers by default. You can disable RFC 3834-compliant headers in the Mail tab at Configuration () > System Settings > General Settings.

Solution

WHMCS will never import email replies that contain the Auto-Submitted header via email piping or email importing.

troubleshooting email-importing email-piping troubleshooting-article

Last modified: 2025 March 21