From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <5e914ebc24d412ce20916a8924820c18@quintile.net> From: "Steve Simon" Date: Sun, 15 Oct 2006 23:21:36 +0100 To: 9fans@cse.psu.edu Subject: Re: [9fans] need help with improving my spam filtering In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Topicbox-Message-UUID: caf6df3e-ead1-11e9-9d60-3106f5b1d025 I have had quite a bit of success with greylisting, however in the last 3 or 4 months it has become less effective. The vast majority of soam I get these days is from spam virus infected machines on DSL lines in the USA (sorry but it true). I was coinsidering adding features to smtpd and ratfs to allow regexes so I could add rules for DSL lines. Most ISPs seem to use a fixed format for the reverse IP addresses for their DSL accounts - though each ISP has its own unique format. There is also some work being done on an SPF validator at present but I will let them announce it as they see fit. -Steve PS: I have resurected Boyds script dws (Die Worthless Spammer) to send a complaint thought most ISPs seem to ignore them, but I feel I should try.