On Wednesday, November 14 at 10:51 PM, quoth Marcus Rueckert:
rejecting on wrong informations in HELO/EHLO saves me lots of spam.
That's a half-baked idea at best, given that you're violating a MUST NOT in the SMTP specification. Plus, how do you judge "wrong"? Hotmail and MSN both fail to use their FQDNs in their HELO arguments---technically that's wrong. I suppose you reject all hotmail.com email?
Check out: http://homepages.tesco.net/~J.deBoynePollard/FGA/smtp-avoid-helo.html
~Kyle
--
Science is what we can tell a computer. Art is everything else.
-- Knuth
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