Various reasons why the MTA can fail and how to diagnose it.
MailEnable routing uses two
files for each mail message. The command file contains the addresses of where
the message should be sent to (called the envelope), and the second
message is the actual message contents. The Message Command File is located in
the Queue\Inbound directory, the corresponding Message file is located in the
Queue \Inbound\Messages directory.
It is possible to copy the Message Command File from the Queue Connector\Inbound directory so that the MTA will not attempt to pick it up. The message can then be edited and placed back in the directory.
These command files can become corrupted if the server is restarted whilst writing the command file (although this is rare).
More detailed steps and information on this problem:
The SMTP/MTA/PO Connector Crashes: Article ME020058
|Product:||MailEnable (All Versions)|
|Class:||HOWTO: Product Instructions|
|Created:||1/05/2003 1:15:00 AM|
|Revised:||Wednesday, May 4, 2016|