We've seen false positives with both spamhaus and njabl. I would not use them due to the fact that they do block some legitimate email.
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Francesco Vertova Sent: Monday, October 02, 2006 11:17 AM To: [email protected] Subject: [xmail] Re: Reducing spam At 22.25 01/10/06, you wrote: >Hi list. Spam seems to be getting to rediculous levels so I'm trying to re= >duce the number of spam messages I am receiving in my xmail server. > >I started by uncommenting the line in server.tab: >"CustMapsList" >"list.dsbl.org.:1,blackholes.mail-abuse.org.:1,dialups.mail-abuse.org.:0" My CustMapsList is bl.spamcop.net:0,combined.njabl.org:0,sbl-xbl.spamhaus.org:0 And I run greylist as a predata filter. And my postdata AV filter performs some checks on the ClientDomain. Together, they catch almost all spam (and viruses). As to dns blacklists: spamhaus and njabl are virtually 0 false positives (provided you give auth'ed dialup users a way to bypass them). Spamcop requires some whitelisting from time to time, but not too much. I had to stop using sorbs and blackholes.five-ten because of too many false positives. Anyway, I think you have to experiment with dnsbl: no one is the best for everyone, it depends on your specific situation (geographic location, traffic patterns etc.). Ciao, Francesco - To unsubscribe from this list: send the line "unsubscribe xmail" in the body of a message to [EMAIL PROTECTED] For general help: send the line "help" in the body of a message to [EMAIL PROTECTED] - To unsubscribe from this list: send the line "unsubscribe xmail" in the body of a message to [EMAIL PROTECTED] For general help: send the line "help" in the body of a message to [EMAIL PROTECTED]
