hi, I have 2 domain name with separate machine, one server is windows 2000 (domain A) and the other is windows NT 4.0 (domain B). The point is I want to deploy one mail server (exchange 2003) to serve that domain user. Can I do that ? Second point is should I Install exchange 2003 in windows 2000 sp3 with new domain server (new forest) ? Can I Install exhange 2003 in standalone server and connect it to another active directory (another machine) ? Thank you for your attention ... best regards, Tatok Prabowo __________________________________ Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software http://sitebuilder.yahoo.com