'Unknown Mail Transport Error' Sending Fail from PostFix

This document (7010291) is provided subject to the disclaimer at the end of this document.

Environment

SUSE Linux Enterprise Server 11 Service Pack 1
PostFix

Situation

Unknown Mail Transport Error messages in the PostFix log.
File pile up in the mailq folder

Resolution

Make sure the file is owned by root.

Also, make it has the rights of -rw-r--r--.

Disclaimer

This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.