[Mimedefang] filter_relay not working

Joseph Brennan brennan at columbia.edu
Fri May 9 10:49:00 EDT 2003


> How safe is it to reject hosts that greet the receiving end with their
> ip numbers? In other words, aren't there any legitimate mail servers
> presenting themselves like that? And what about strings with no dots
> in them?


Not safe at all.  You'll drop a lot of "legit" mail including mail
submitted to your server from certain PC mail clients.

Check syslog, or Received: headers in your inbox.

Joseph Brennan          Columbia University in the City of New York
postmaster at columbia.edu                 Academic Technologies Group




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