I've just had a user with this exact same problem.
The messages bounce back with:
Quote:
Subject: The subject
To: someone@domain.net
Note: File Upload Fault. Please contact your system administrator regarding maximum message and attachment sizes.
Error Code: 401
Error Text: 401,'null'
|
This is while sending just a plain email without any attachments.
Running release 5.0.8_GA_2462.RHEL5_20080709155810 CentOS5 NETWORK edition.