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
Scott,
this method will work, but if you want to block the entire network where the junk comes from then you'll have to block the entire netblock and not just that part of it.
iptables -A INPUT -s 209.0.0.0 -j DROP
This should definately take care of things.
-- Mark
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