Blocking SMTP traffic based upon RBL....
forrie at forrie.com
Wed Aug 4 22:16:36 PDT 2004
There are probably dangerous consequences to doing something like this
improperly; however, there is a project out there called PacketBL:
It's for Linux only, unfortunately -- however I like the idea. It
interfaces with the packet filtering system and selectively blocks SMTP
(port 25, configurable) traffic based upon RBLs etc.
I wonder if there is a similar way to accomplish this with FreeBSD/ipfw...
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