On Saturday 01 March 2003 10:09 pm, Scott St. John wrote: > Until I can migrate my clients over to Postfix I have been using the > access lists in Sendmail to block certain repeat spammers. I am wondering > if I could just use iptables to block them and take the load off Sendmail? > > My question would be 1)Is that practical 2)Is the proper way to block an > entire network this: > > iptables -A INPUT -s 209.8.161.0/24 -j DROP > > I added this, however traffic from this network is still reaching my mail > server. I want to block EVERYTHING from that network as they are sending > porn mail to my clients. > > Thanks, > > -Scott
I do this at the border gateway for bulk mailers that present a heavy load to my postfix mail server. I use spamcop and a local RBL to catch some more. I also use RAV ($) which does a pretty good job at viruses and spam at the back end. jim tarvid
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