Has anyone seen a phenomenon where undeliverable messages are being sent to the sender even though the messages have really been delivered?
What is the exact content of those messages?
Also, I am getting undeliverable messages with the following message:
451 Requested action aborted: virus detection communication failure Delivery failed 20 attempts
That is what happens with IMail AntiVirus chokes. Until the problem is fixed (stop/restart a service? new AV program?), you'll keep getting that, and E-mail will bounce.
-Scott
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