Hello All, Forest A -- domain1.com Exchange 2007 Forest B -- domain2.com Exchange 2007 For users for forest B we have cerated account in forest A and cerated mailbox also. So now users have two mailboxes. One in forest A and another in Forest B. I'm using below mentioned PS script to move mailbox, but its not merging the mailbox, its creating new account and mailbox and moving the messages to that. Move-Mailbox -TargetDatabase "E2K7\SG03\MDB03" -Identity movembx -GlobalCatalog GC1.domain1.com -SourceForestGlobalCatalog DC01.domain2.com -SourceForestCredential $S -TargetForestCredential $T -AllowMerge What we need is to merge the mailbox in forest B to mailbox already created in forest A. Thanks everyone in advance! Regards, Harisha NHarisha N

Move-Mailbox -TargetDatabase "E2K7\SG03\MDB03" -Identity movembx -GlobalCatalog GC1.domain1.com -SourceForestGlobalCatalog DC01.domain2.com -SourceForestCredential $S -TargetForestCredential -AllowMerge $True Cheers,Gulab | MCITP: Exchange 2010-2007 | Skype: Gulab.Mallah | Blog: www.ExchangeRanger.blogspot.com

I checked with AllowMerge $True, but the same thing. Looks like its unable to find the account in another forest.Harisha N