Jeremy Bowen wrote:
If ignorant mail-admins didn't accept the spam and *then* bounce it, we
wouldn't have this problem. Unfortunately, far too many servers are set up to
happily accept whatever is sent to them and then try to bounce it to the
(invariably) forged "From" address.
Kiaora Jeremy!
(this is known as a "dictionary attack" BTW)
"ignorant mail-admins" just about defines every standard Qmail install
out there. That's exactly what Qmail does (and Exchange BTW).
I agree that things like the goodrcptto patch can reduce this problem -
but let's not forget who is really to blame here...
--
Cheers
Jason Haar
Information Security Manager, Trimble Navigation Ltd.
Phone: +64 3 9635 377 Fax: +64 3 9635 417
PGP Fingerprint: 7A2E 0407 C9A6 CAF6 2B9F 8422 C063 5EBB FE1D 66D1
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