Sporadic Bounces

Unanswered Question
Douglas Hardison Wed, 11/12/2008 - 15:27
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Indeed it does make it hard to troubleshoot.
My first impression is a firewall doing smtp inspection, which may be tripping on file attachments, or more likely message size.

Due to the nature of the message, I'd first check any firewalls between the IronPort and the internet for smtp inspection.

If that search comes up empty, network captures would give you the most definitive answer to at least *which* firewall (or similar) is causing the error.

-whardison

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