Thanks, this makes perfect sense now! So basically $RelayAddr is who they really are and $Helo is who they *say* they are...
Thanks! BTW - I would class a locally originating email destined for a local user as INTERNAL, a locally originating email destined for a remote email address as OUTBOUND and a remotely originating email destined for a local user INBOUND (the 4th possibility of a remotely originating email destined for a remote email address is a RELAY I guess?) _______________________________________________ NOTE: If there is a disclaimer or other legal boilerplate in the above message, it is NULL AND VOID. You may ignore it. Visit http://www.mimedefang.org and http://www.roaringpenguin.com MIMEDefang mailing list [email protected] http://lists.roaringpenguin.com/mailman/listinfo/mimedefang

