Not the typical question but I'm hoping to get some solid facts that can help me out. We just did a hardware refresh and have these great new servers, and unfortunately management would not approve an upgrade from Exchange 2000 to 2003 or 2007. They do not want to hear about the nice new features, improved stability, etc. All they are looking for is business critical reasons on why this should happen, and why the current instance of EX 2000 is no longer adequate for our needs. I have things like it no longer being supported and cases like where we paid $4K for the DST patch, but a little more would be huge! Thank you,Sean

Honestly, if none of the new features are enough to sell your management on then the fact that Exchange 2000 is completeld unsupported at this point is really your only ammunition, aside from the native redundancy that 2007 has for handling database corruption, single mailbox server crashes, and datacenter outages. Much of the feature set advantages also rely on what version of Outlook clients you have deployed as well.