Greetings:
The latest issue of ;login: has an article about SPAM on p.28. The
following links are included that I haven't seen before.
Enhancements to smap (part of TIS firewall toolkit):
http://www.cih.com/smap-hacks/
SMTPD (Obtuse Systems Corp) supports filtering mail by checking for domain
names that have no DNS A, NS, or MX records, checking for domains that have
DNS served from a given address or network, checking for IP ranges, or
using regular expressions.
ftp://ftp.obtuse.com/pub/smtpd/
NT-based filters:
http://www.sica.com/freestuf/mfilter.htm
--
Karl Vogel
ASC/YCOA, Wright-Patterson AFB, OH 45433
vogelke(_at_)c17mis(_dot_)region2(_dot_)wpafb(_dot_)af(_dot_)mil