-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 The Monday 2006-04-03 at 15:38 +0200, Arjen de Korte wrote:
Well, the only way to reject an email because it is considered spam is after complete reception; the scanning is surely done later. It is simply a «bad thing» to bounce back spam.
Just like you can reject on 'invalid user' or a RBL/RHSBL, you can reject on the content of a message. Point is, you have to do it before you have accepted the message for delivery. This has been possible with Sendmail for quite a while (via the Milter interface) and Postfix now also allows you to do this with the before-queue content filtering since version 2.1 (see smtpd_proxy_filter).
I know it can be done. But spam checking is slow, even half a minute if you have to wait to get answers from network tests. SpamAssassin does it that way, and amavis, bouncing mail later (not rejecting during the transfer). I don't agree with them, I only say that I see why they do it. - -- Cheers, Carlos Robinson -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (GNU/Linux) Comment: Made with pgp4pine 1.76 iD8DBQFEMSlmtTMYHG2NR9URAo+qAJ0dl+aCyFsiUkQIcV7URJ0XlItxawCaAxIv b1BPCGQdqxG7DlZb9Zdi9OM= =RELZ -----END PGP SIGNATURE-----