Hi All, After migrating the bulk AD account from one domain to another domain by using AD migration tool 3.0 version found some associated mailbox got disconnected and created as new mailbox in same server in mailbox database default store. Old mailbox is showing as disconnected mailbox. Could you please help to figure out what the cause of this issue?

Hi, I tested in my lab (Exchange 2003 and Exchange 2010 SP1): When I used ADMT 3.2 to migrate user, the mailbox will not showing as disconnected mailbox and created as new mailbox in same server in mailbox database default store. Could you explain how did you do and what did you do in detail, that I can work for your more efficiently. If you try to move mailbox cross forest (from Exchange 2003 to Exchange 2007), here are some related documents for you: How to Move a Mailbox Across Forests http://technet.microsoft.com/en-us/library/aa997145(EXCHG.80).aspx Exchange 2007 Cross Org Mailbox Migration http://blogs.technet.com/b/exchange/archive/2006/11/02/3396084.aspx Thanks, Evan Liu TechNet Subscriber Support in forum If you have any feedback on our support, please contact tngfb@microsoft.com

Hi, I tested in my lab (Exchange 2003 and Exchange 2010 SP1): When I used ADMT 3.2 to migrate user, the mailbox will not showing as disconnected mailbox and created as new mailbox in same server in mailbox database default store. Could you explain how did you do and what did you do in detail, that I can work for your more efficiently. If you try to move mailbox cross forest (from Exchange 2003 to Exchange 2007), here are some related documents for you: How to Move a Mailbox Across Forests http://technet.microsoft.com/en-us/library/aa997145(EXCHG.80).aspx Exchange 2007 Cross Org Mailbox Migration http://blogs.technet.com/b/exchange/archive/2006/11/02/3396084.aspx Thanks, Evan Liu TechNet Subscriber Support in forum If you have any feedback on our support, please contact tngfb@microsoft.com

Hi, Any updates on this issue? Thanks, Evan Liu TechNet Subscriber Support in forum If you have any feedback on our support, please contact tngfb@microsoft.com