my question is does any body know if i was to install exchnage server 2003 in a domain that already has exch 5.5 and not make it part of the same exch site could there be a conflict what i whant to do is have 2 servers running and migrate users my hand meaning export there mailboes and import them to the new exchnage 2003 server the resons is that our exch 5.5 site is very meased up thanks