Some other examples of using check_* in sendmail 8.8 (or 8.9)

Last Update 1998-08-27 Gregory Neil Shapiro has posted these examples, Kenneth Herron made another interesting proposal. Kim offers Patches for filtering on email src/dest IP addresses - anti-relay patches .

Alex Petrov wrote rules to check arbitrary network blocks in CIDR notation.

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Claus Aßmann <ca@informatik.uni-kiel.de>