troubleshooting Question

Exchange 2003 Server sending SPAM?

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pitsbros asked on
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Hey folks,

Our Exchange Server must be sending out SPAM somehow, because I caught over 3000 messages being retried in our Queue in system manager and now we're blacklisted on Barracuda networks. We've been getting NDR and System Administrator messages in certain e-mail inboxes and I don't know what to do. I know I'm not set up as a relay, so what else do I do? I've run Trend Micro a dozen times and it catches nothing...
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