Moving mailboxes from Exchange 2010 organization to Exchange 2013 organization – Part 2


After you enabled Mailbox Replication Proxy service on the source Exchange Server, it is a good idea to test its functionality. You can easily do it by executing Test-MRSHealth cmdlet. Make sure that you have value True in each Passed row, for each test, and you’re good to go.

Before actually moving a mailbox, you should prepare it for moving. Actually, you have to migrate a user object first and prepare mailbox move request. Luckily, Microsoft has provided a script for this. Steps for preparing an object move are as follows:

1.       Open Exchange Management Shell on the destination CAS server and change the path to “C:\Program Files\Microsoft\Exchange Server\v15\scripts”

2.       Type, $Local = Get-Credential and press Enter. When prompted, provide admin credentials for new (destination) organization. That is the org to which you move the mailbox.

3.       Type $Remote= Get-Credential and provide credentials for source organization. By executing these steps we are actually storing credentials for administrators in both organizations. These credentials are used by the script in the next step.

4.      Type:

.\Prepare-MoveRequest.Ps1 -Identity “User UPN” -RemoteForestDomainController FQDN_OF_SourceDC -RemoteForestCredential $Remote -LocalForestDomainController FQDN_OF_LocalDC -LocalForestCredential $Local -TargetMailUserOU "OU=OUNAme,dc=domain,dc=extension"  – you should fill italic text with your own values
(example : .\Prepare-MoveRequest.Ps1 -Identity -RemoteForestDomainController -RemoteForestCredential $Remote -LocalForestDomainController dc-srv-01.dizdarevic.local -LocalForestCredential $Local -TargetMailUserOU "OU=IT,dc=dizdarevic,dc=local" )

5.       After you execute this PS script you should get the reply : 1 mailbox(es) ready to move

Now, if you open Active Directory Users&Computers in destination domain, you should find user object created (and disabled, since we didn’t move password). If the object is there, we are ready to move the mailbox. We will do it in Exchange Admin Center in Exchange Server 2013.

So, open EAC and perform following:

Click recipients and then click the migration tab. Click New and choose Move to this forest option. In a wizard, click Add and select the user that you just moved. Actually, here you will see only users that are moved using procedure described earlier. Enter credentials for remote/source forest and confirm the name of migration endpoint – that is FQDN of the server where you enabled MRS Proxy service. After that choose the destination database for the mailbox and confirm the admin credentials. Start the migration batch. After that wait for a few minutes until status of user object becomes Synced. Then click Complete this migration batch and wait until the status of the object becomes Completed. And, you’re done!

After mailbox is migrated, all you have to do is to set the password on the moved user account and to enable that account. After that, user can login in the new forest, and will have its mailbox content moved.

So, as you can see, the process is not simple, but it can be done if you carefully follow the steps I provided. If you have troubles, let me know – maybe I can help.

Author: ddamir

Damir Dizdarevic is a and IT professional. He works as a manager of MS CPLS Learning Center in Logosoft Sarajevo, and as a lecturer and author of MOC courses. Occasionally, he also works as a system designer for complex enterprise environments. He is a founding member and president of Bosnian Microsoft Community. He has been working with Microsoft platforms for the last 17 years and he is particularly specialized in Windows Server, Exchange Server, mobility and virtualization. Microsoft awarded him with the Most Valuable Professional – MVP status for his outstanding contribution in sharing knowledge about Microsoft Server products, large number of lectures he delivered, and for his high technical competence. Damir owns several technical certificates (MCSE, MCTS, MCITP, and MCT) for Windows Server 2012, 2008 R2, Exchange Server 2010, Security and Hyper-V. He is regular presenter on conferences in ex-Yu region. On Microsoft Sinergija conference, for previous 7 years, each time he was graded as one of top three speakers. On a Bosnian MS conference, he is the best speaker for last two years. He is also a regular and highly graded presenter on other Microsoft conferences in region such as NT Conference (Slovenia), Microsoft Vizija (Macedonia), Microsoft Windays (Croatia), MS Technet, Mobility Day, KulenDayz etc. Damir is one of very few trainers in Europe who works as an author and reviewer of official MOC courses. In previous year, he was authoring courses 20417 (Upgrading Skills to Windows Server 2012), 20414 (Implementing an Advanced Server Infrastructure), 20412( Configuring Advanced Windows Server 2012 Services) and 20410 (Installing and Configuring Windows Server 2012). Also, he was authoring System Center 2012 courses and currently he is working on Exchange Server 2013 and Windows Server 2012 R2 courses. In addition, he has been working for 16 years now as one of the editors of BiH IT magazine INFO, where he published more than 300 technical articles, and he is also writing for the famous Windows ITPro Magazine (some of his work can be found at:

5 thoughts on “Moving mailboxes from Exchange 2010 organization to Exchange 2013 organization – Part 2”

  1. any help would be great.


    there is no roll back option via native microsoft tools. Priasoft is the only 3rd party that i have seen that allows roll back as they use MAPI to move the mail & not the move requests.

    1. Hi Steve!

      And about the Migration Tab on exc 2013. Is it possible to make this all procedure through shell and not via EAC? “Move to this forest…” We would like to automated it.


  2. Hi – just checking with you how things are going to look like for the “moved” mailbox .. how will e-mail continue to flow for him .. will he retain his original “e-mail” address.. and will the source “user” object/mailbox be modified to “Redirect” mail to his new home ?

  3. I would to ask one question which is related to OST. Like if I have moved a mailbox from one forest to another then it’s old OLD file is usable or not. Can we use attached the OST with migrated user in target domain

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