Joey a écrit : >> -----Original Message----- >> From: [EMAIL PROTECTED] >> > [mailto:[EMAIL PROTECTED] > >> On Behalf Of Victor Duchovni >> Sent: Monday, October 13, 2008 11:38 AM >> To: postfix-users@postfix.org >> Subject: Re: Finally blocking some spam >> >> On Mon, Oct 13, 2008 at 11:33:15AM -0400, Joey wrote: >> >> >>> Hello All, >>> >>> >>> >>> I just wanted to share my success with you guys. I have been on the >>> > list > >>> for many years running 3 postfix servers. We don't have a lot of >>> > clients, > >>> but enough to warrant millions of connections a month by spammers. >>> >>> I have been using the RBL's along with other methods but we still get >>> > way > >>> too much spam. >>> >>> >>> >>> I have always used some firewall rules to block connections for port 25 >>> > from > >>> a variety of repeat offenders that connect to my servers and maybe we >>> blocked a million or two a month . >>> >>> >>> This still allowed about 14K connections per hour to hit our servers and >>> resulted in blocking over 3 million of them via spamhaus RBL in one >>> > month. > >> A spamhaus data feed for 1-5,000 commercial users is $1850/year... You >> really should consider subscribing, rather than fighting spam with >> country blocks... >> >> > > I am still using spamhaus at the RBL level wouldn't that be the same? >
if you pay for a feed, you'll have the list locally, and you can use it however you want. > I am trying to reduce overhead by getting it at the point of connection at > the firewall level. > If you move too much to the firewall, you risk having more FPs.
