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Selmak

SMTP Proxy

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Looking for a way to intercept all messages in an SMTP stream, and strip-out a header (put in by the ISP) that's confusing the downstream spamfilter.

Would work as a proxy, taking msgs on Port 25, remove the offending header (no need to parse for it as it's always in the same place linewise) and forwarding to another port on same IP.

There are some other SMTP examples that I'll look-through, but just wondered if anyone has a pointer in the right direction.

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