This article applies to:

• Trustwave MailMarshal (SEG)
• Trustwave ECM/MailMarshal Exchange 7.X

Symptoms:

Event ID: 3500
Type: Error
Source: MMEngine (MailMarshal SMTP) or MEXEngine (MailMarshal Exchange)
Description: Failed to deadletter

Causes:

This error occurs when the MailMarshal Engine encounters a message that should be dead-lettered, but is unable to move the associated MML file into its destination directory.

The problem can be due to the file being locked by an outside process, the file being removed by an outside process, or the MailMarshal Engine having insufficient permissions to write to the destination folder.

Resolution:

Verify that virus scanners and archiving applications are not attempting to access the files.

Verify that the MailMarshal Engine has sufficient permissions over the deadletter folders.