-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello,
no offense intended but this approach will make you reject valid mails. For one, your basic assumption is that any mail originating from a hostname including dial/adsl/dsl is just spam. This doesn't hold true in times where lines are becoming faster and companies are running their own mail server from a DSL connection. Just to give you an idea. Here in Japan fibre optics 100 Mbit lines are very common and one provider started to offer a 1 Gigbit line for a very affordable monthly flat rate. Regards, Bernd On Tue, 28 Apr 2009 01:47:33 +0000 courier-users-requ...@lists.sourceforge.net wrote: > From: "Marcus Pereira" <mar...@task.net.br> > To: courier-users@lists.sourceforge.net > Subject: [courier-users] badhost patch > Date: Mon, 27 Apr 2009 16:44:56 -0300 > > Hello. > > Some years ago I missed a function on Courier bofh file. It was to reject > connections based on the reverse dns host name. > I made a patch and I use it for arround 4 years with no problems. > I use mostly to block direct delivery from adsl/dial-up connections. > > The bofh lines look like this: > > badhost adsl.giga.net.tw > badhost broadband.ntl.com > badhost cable.primacom.net > badhost dial-in.ttnet.net.tr > badhost dial-up.arnes.si > badhost dyn.user.ono.com > badhost dsl.amrltx.swbell.net > > And courier will block with messages like this: > > 517 Host rejected: 217.217.64.81.dyn.user.ono.com > > Blocking hostnames and not IP networks is much more easy to mantain. I hope > this helps anyone who missed that feature too. > > Marcus Pereira - -- Bernd Plagge - プラゲ ベェアント First Choice Internet Ltd., Tokyo - ファースト・チョイス・インターネット(有) -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAkn2arMACgkQpYU8M8PbPV7dSACfak7RTt4VRKPpdzw5tCIWr1VA uPYAoK0g7+3DLBDrqyLKhcJCT+YNfYqK =tYgC -----END PGP SIGNATURE----- ------------------------------------------------------------------------------ Register Now & Save for Velocity, the Web Performance & Operations Conference from O'Reilly Media. Velocity features a full day of expert-led, hands-on workshops and two days of sessions from industry leaders in dedicated Performance & Operations tracks. Use code vel09scf and Save an extra 15% before 5/3. http://p.sf.net/sfu/velocityconf _______________________________________________ courier-users mailing list courier-users@lists.sourceforge.net Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
