I am in the process of consolidating four Exchange (three '07 and one '03) systems (as in Organizations in separate AD forests) into a new Exchange 2007sp1 system in a different forest/AD. Three of the four systems are small (<75 users each ) and we have already established a complete trust between those three forests.
The other organization is being split off of a system after a merger with the company hosting the new Exchange '07 system I'm building and they are telling me that they will only export all of the user messages, calendar, contacts, etc. to .PST files...there will be a little over 2,000 of these .PST files.
Short of manually importing all of the "stuff" from each .PST file into the corresponding AD/Exchange user in our new target system, is there any sort of scripting or utility I can use to "suck" all of the contents from the 2,000+ user .PST files into my new Exchange. I've suggested giving the .PST files to the users (who are already in the target AD forest) and let them open those .PST files but that was not accepted.
Thanks in advance for assistance!