I didn't see anything about this in the archives, but as far as
implementing a reasonably friendly anti-spam policy
( without forbidding relaying
entirely, is there a consensus opinion?



Finally, someone who is not an smtp nazi. My policy
is as follows:
  1) Of my servers a few are designated as MX
           hosts. These require a valid FQDN.
           This holds someone responsible for the
           mail my servers relay.
  2) My other servers will only relay mail if
           it originates or terminates locally.

Marcus R. Williams, Jr.
ISP Programmer / Engineer