Disable the mailbox on the old user. Then attach the mailbox to the new user.
Test it first, but it is simple. From: [email protected] [mailto:[email protected]] On Behalf Of xyz Sent: Tuesday, March 11, 2014 8:22 PM To: [email protected] Subject: [Exchange] Move user mailbox from one AD account to another AD account Greetings, EXCHANGE 2010 SP3 U3 Not sure how to phrase my question, so doing my best. We recently converted from a manual user account creation process to an automated ORACLE OIM account creation process. Skipping a lot of details, but I now have a user with the old account and mailbox that has been in use with a lot of data, and now has an additional new AD account with a NEW SAMACCOUNTNAME. To summarize, my goal is to remove the mailbox from the old account, and attach it to the new account. Researching this, but hoping for any tips and guidance. Thanks for your help. Dana
