Hi Willaim, You don't really want the Exchange Server, per se, to forward the mail, you want the Exchange SMTP service to forward the mail. This is easy to do, just create a remote domain for the domain handled by the five point five server, then configure that remote domain for use the five point five server as its smart host. This allows the Exchange SMTP service to forward mail for that domain, and that domain *only* to the Exchange five point five server on the internal network. Check out www.isaserver.org/shinder for details on the config, and also the ISA Server and Beyond book has some info on this. HTH, Tom www.isaserver.org/shinder -----Original Message----- From: William England [mailto:administrator@xxxxxxxxxxxxx] Sent: Tuesday, January 21, 2003 1:12 PM To: [ISAserver.org Discussion List] Subject: [isalist] Mail server setup http://www.ISAserver.org Hi All I have ISA and X2K on one machine. I need X2K to receive mail for 2 domains but need it to forward mail for one of them to an Exchange 5.5 server......How can I do this? Any help appreciated William ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=isalist ISA Server Newsletter: http://www.isaserver.org/pages/newsletter.asp ISA Server FAQ: http://www.isaserver.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Exchange Server Resource Site: http://www.msexchange.org/ Windows Security Resource Site: http://www.windowsecurity.com/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: tshinder@xxxxxxxxxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')