Hi, I keep getting the below error when trying to move a mailbox from Exchange 2007 server to our Exchange 2003 server. They are in the same forest\ domain etc. Any idea's Code Block [PS] C:\Documents and Settings\Administrator.XYZ>Move-Mailbox -Identity shaunb -TargetDatabase "mail02\first storage group\Mailbox Store (mail02)" -IgnoreRuleLimitErrors ConfirmAre you sure you want to perform this action?Moving mailbox: Shaun Boshoff (ShaunB@xyz.co.za) to database: INTRANET\FirstStorage Group\Mailbox Store (mail02). The operation can take a long time andthe mailbox will be inaccessible until the move is completed.[Y] Yes [A] Yes to All [N] No [L] No to All [S] Suspend [?] Help(default is "Y"):yMove-Mailbox : Error was found for Shaun Boshoff (ShaunB@xyz.co.za) because: Error occurred in the step: Opening source mailbox. Failed to open mailbox with error: The operation failed., error code: -1056749262At line:1 char:13+ Move-Mailbox <<<< -Identity shaunb -TargetDatabase "mail02\first storage group\Mailbox Store (mail02)" -IgnoreRuleLimitErrors Identity : xyz.co.za/Users/Shaun BoshoffDistinguishedName : CN=Shaun Boshoff,CN=Users,DC=xyz,DC=co,DC=zaDisplayName : Shaun BoshoffAlias : ShaunBLegacyExchangeDN : /o=XYZ Holdings/ou=Exchange Admin istrative Group (FYDIBOHF23SPDLT)/cn=Recipie nts/cn=ShaunBPrimarySmtpAddress : ShaunB@xyz.co.za SourceServer : mail01.xyz.co.zaSourceDatabase : MAIL01\First Storage Group\First Mailbox DatabaseSourceGlobalCatalog : cqsdc1.xyz.co.zaSourceDomainController : cqsdc1.xyz.co.zaTargetGlobalCatalog : cqsdc1.xyz.co.zaTargetDomainController : cqsdc1.xyz.co.zaTargetMailbox :TargetServer : mail02.xyz.co.zaTargetDatabase : mail02\First Storage Group\Mailbox Store ( mail02)MailboxSize : 0KBIsResourceMailbox : FalseSIDUsedInMatch :SMTPProxies :SourceManager :SourceDirectReports :SourcePublicDelegates :SourcePublicDelegatesBL :SourceAltRecipient :SourceAltRecipientBL :SourceDeliverAndRedirect :MatchedTargetNTAccountDN :IsMatchedNTAccountMailboxEnabled :MatchedContactsDNList :TargetNTAccountDNToCreate :TargetManager :TargetDirectReports :TargetPublicDelegates :TargetPublicDelegatesBL :TargetAltRecipient :TargetAltRecipientBL :TargetDeliverAndRedirect :Options : IgnoreRuleLimitErrorsSourceForestCredential :TargetForestCredential :TargetFolder :PSTFilePath :RsgMailboxGuid :RsgMailboxLegacyExchangeDN :RsgMailboxDisplayName :RsgDatabaseGuid :StandardMessagesDeleted : 0AssociatedMessagesDeleted : 0DumpsterMessagesDeleted : 0MoveType : IntraOrgMoveStage : MoveStartTime : 1/18/2008 10:39:31 AMEndTime : 1/18/2008 10:39:31 AMStatusCode : -1056749262StatusMessage : Error occurred in the step: Opening source m ailbox. Failed to open mailbox with error: T he operation failed.ReportFile : C:\Program Files\Microsoft\Exchange Server\L ogging\MigrationLogs\move-Mailbox20080118-10 3930-0137141.xml

Please check homeMDB attribute on Microsoft System Attendant on both Exchange 2007 & Exchange 2003 servers.To view homeMDB attribute for SA on Exchange 20071. Open ADSIEdit.msc2. Expand Configuration | CN=Configuration | CN=Services | CN=Microsoft Exchange | CN=Administrative Groups | CN=<Exchange 2007 AG> | CN=Servers | CN=<Exchange Server>3. Right Click on CN=Microsoft System Attendant | go to attribute's list and check homeMDB attribute.This attribute is associated with distinguish name for one of mailbox stores in Exchange 2007. If it is not present copy the distinguish name of mailbox store and restart MSExchangeSA services.If it is present then we may need take debug traces using ExTRA in Exchange 2007 and along with NetMon trace. Please log call with Microsoft PSS support.Regards,BalaV Bala R Krishna