Been looking into my spam situation again and noticed most of my spam come in from my secondary MX rather than primary. I imagine the spammers know that things like RBL’s and so forth will only be deployed on the primary servers. So I enabled some RBL checking and a hand made list of regex matches against hostnames on the machine and found the following:
Total Mail Handled by MX: 1221
Total Mail Marked as Spam: 861
Scary.
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