-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 El Jueves, 20 de Marzo de 2003 02:50, [EMAIL PROTECTED] escribiķ: > [EMAIL PROTECTED] said: > > Well.. I can also grep "From:" to see wich addresses are sending more > > mails than usual, don't I? > > You're joking, right? From: is easily faked, and any bulk spammer fakes it.
Yes, "From:" is easily faked, but if I see an IP that uses many differents "From:"s I can block it, and if I see a "From:" that should not be allowed, I can block it, too... > > Unless you block your clients from sending on port 25, you can't tell what > mail they're sending. I think I've not said outgoing mail server and incoming mail server are two different computers... > If you do block port 25, I wouldn't expect your commercial clients to be > happy. I would never block port 25... why? > > If you force (by firewall rules or otherwise) them to use mail.bigisp.com > as their outgoing relay, they might feel you're invading their privacy. > Would you want someone checking your phone calls (for other than billing > purposes)? I'm sorry but I think we're not talking about the same... -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iD8DBQE+eX0cGOU6HQZ81TcRAoJAAKCukO5Qj67riCKUtIceFYhmVT+6RwCgh+KI 8lwYGR5xGtd+iZiZiTTQr6k= =0muG -----END PGP SIGNATURE-----
