John Conover writes:
> As a matter of policy, is it reasonable to reject messages that fail a
> reverse DNS lookup on HELO's FQDN/authentication?
No.
Neither is it reasonable to reject messages from a host whose reverse
DNS hostname lacks an MX record.
Neither is it reasonable to reject messages from a host which isn't
running an SMTP server.
Although I've been sorely tempted to implement both of these.
--
-russ nelson <[EMAIL PROTECTED]> http://russnelson.com
Crynwr sells support for free software | PGPok | Watch out! He's got an
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