Setup: In-house Exchange Server 2010 using Postini for spam protection.

An user in our organization is getting his outbound emails to a particular recipient bounced back with an error of "Postini #554 rejecting banned content ##". I have added that recipient to this user's "Approved Recipient" list to no avail.

I'm looking for advice on how to troubleshoot this issue. At the moment, I can't find any log messages for this particular email.

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What is the "Reporting MTA" on the bounce? – Coding Gorilla Nov 2 '11 at 19:14
@CodingGorilla: The returned emails doesn't have the Reporting-MTA header/field. – Jason Wang Nov 2 '11 at 21:09
That's true, but it is stated in the body and not in the header. – mailq Nov 2 '11 at 22:57
Maybe you can edit your question and include the bounce message, that will give us more information to help you – Coding Gorilla Nov 3 '11 at 13:49
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