Hi guys, I have a few Exchanger Server 2007 and one Exchange Server 2000 who was first installed. I would like to move administrator mailbox but I have an error, see below : Error was found for Administrator (administrator@domain.com) because: Error occurred in the step: Moving messages. Failed to copy messages to the destination mailbox store with error: MAPI or an unspecified service provider. ID no: 00000000-0000-00000000, error code: -1056749164 I checked permissions, mailbox quota, delegates but it doesn't work better... Could you please help me? I created a PST file, if it doesn't work, I'm disabling administrator mailbox and recreate a new mailbox from Exchange Server 2007. Tell me if I can remove the administrator mailbox which was created under Exchange 2000? Thanks.

Yes you can remove that. And Recreate with Exchange 2007 Make sure you are not touching the AD account That should Cause any issue Satheshwaran Manoharan | Exchange 2003/2007/2010 | Blog:http://www.careexchange.in | Please mark it as an answer if it really helps you

Hi Maybe you need check permission. Please read this KB. http://technet.microsoft.com/en-us/library/dd285510.aspxTerence Yu TechNet Community Support

Hi Maybe you need check permission. Please read this KB. http://technet.microsoft.com/en-us/library/dd285510.aspxTerence Yu TechNet Community Support