Hey guys, SMTP relay seems to be a frequent topic of discussion. So, I thought I'd include a doc on this in ISA/Exchange Deployment kit. I'm only about half done with it and what I had so far is a very rough draft. So, if you had suggestions for more information to be included, let me know: Supporting ISA Server 2000 Publishing of Exchange Server 2000/2003 with SMTP Relays: http://www.tacteam.net/isaserverorg/exchangekit/smtprelay/smtprelay-1.ht m Thanks! Tom Thomas W Shinder www.isaserver.org/shinder <http://www.isaserver.org/shinder> ISA Server and Beyond: http://tinyurl.com/1jq1 Configuring ISA Server: http://tinyurl.com/1llp <http://tinyurl.com/1llp>