Hi everyone,I have a very big problem. My exchange 2007 server failed and I installed new one (with same name). EDBs are in safe.Server is 2K3 64bit.I installed E2k7 with m:recoverserver attribute. However, the old SGs aren't there (shouldn't they?). I tried to create SGs manually and then restore mailboxes with RSG. Here starts the problem; merge portion doesn't work correctly. It doesn't find anything to restore.I don't get any error messages.I have already checked following linkhttp://social.technet.microsoft.com/Forums/en-US/exchangesvravailabilityandisasterrecovery/thread/c9723a2c-3e8d-462c-8253-6cee38a7a8a6/Here is current situation shortly:- Reinstalled E2K7 with m:recoverserver attribute- All mailboxes are listed but not working- I created manually the SGs and mailbox databases exactly with old namesHope somebody can help me.

Update:Now my merge operation founds the mailboxes, but I get following error message:"database is mandatory on usermailbox"

Please try to swap restored database (From NTbackup) with new created empty database The procedure in this thread will help

There are certain things you need to follow before recovering the EX2007 server. See below Article. http://www.msexchange.org/tutorials/Recovering-Exchange-2007-Server-RecoverServer-switch.html Similar Case:- http://social.technet.microsoft.com/Forums/en-US/exchangesvravailabilityandisasterrecovery/thread/5d16b090-896f-43d3-bbbc-662bf041e65a/ Vinod |CCNA|MCSE 2003 +Messaging|MCTS|ITIL V3|