I'm sure this has happened to everyone... at least it happened to me once:

- Spammer sends you a message with a forged sender
- TMDA replies with a confirmation request to the forged sender's server
- The forged server is misconfigured and sends a bounce to your "reply-to" address instead of your envelope
- The spam is released (and maybe the forged address whitelisted)
- You wail, gnash your teeth, and with the admin of the forged server would fix his/her MTA


What about changing Confirmation so that a confirmation response is only processed if the envelope sender is NOT "<>"? This may cut this down a bit.

--
Jim Ramsay
"Me fail English?  That's unpossible!"

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