Migrate mailboxes and accounts from Exchange 2003 on Win 2003 to Exchange 2007 on Win 2008
Posted on 2009-02-15
I have Windows 2003 server with Exchange 2003. This server is single and provide DC.
I have installed a new server with Windows 2008 server. I want to copy all accounts from active directory from 2003 to 2008 and also mailboxes form ex 2003 to ex 2007. The new server 2008 is in DMZ. The old server 2003 wil stay DC and after successful migration of mailboxes I can uninstall Exch 2003 but soonest a few weeks after migrating.
I tried use dcpromo and adjusted the 2008srv as BDC and then installed the Exch 07 but Exch 03 and 07 was in some connection mode and Exch 07 did not work correctly. I also used the Exmerge tool to convert mailboxes in Exch 03 to pst files, but it did not work, all pst files was empty and some error appear.
Names of domains will same on both servers. Is it better use some migration tools and apply it on separately servers or shall I use some synchro tools as BDC etc.
Could you give me advice and some steps how shall I do that ?
I have only a few hours to do that, because tomorow mornig migration would be done!
Thank you a lot!