postfix & spamassassin - filtering out sender = recipient
I was hoping someone could help me figure out a way to block incoming email within either postfix or spamassassin when the sender equals the recipient. The manner in which our mail infrastructure is set up would preclude this from happening. Granted, we do have outside vendors that spoof our domain so we have to allow emails in with our domain as the sender/from. The vendors do not, however, utilize the same sender/recipient when sending emails.
Anyone out there know of an easy way to accomplish this?
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