Stephen> Anybody know anything about this? Interesting...I wonder if this is why I was unable to send email from home to some vendors that use the Yahoo storefront stuff. I just kept getting bounced with a message like "access denied" or "unauthorized user" or something like that (as I said, I did it at home so I don't have the bounce here in front of me right now and apparently my memory is a bit fuzzy right now). Might have something to do with the initial Received: header coming from a dynamically assigned IP or something like the 192.168 reserved private network address ranges, maybe? Chuck -- Charles K. Hines <ckh(a)requesttech.com&gt; <chuck.hines(a)baesystems.com&gt; Principal Scientist at ReQuest Technologies Inc (http://www.ReQuestTech.com/) "That's why I sabotaged my highly scientific mind early on with cartoons and sugar." - Sheen (Jimmy Neutron, "Normal Boy")