Hi all,

Please find below some technical information about our Active Directory and Exchange infrastructure :

> 2 AD Forests 

> One Exchange Organization per-forest :

===> AD Forest A : Exch version > 2007

===> AD Forest B : Exch version > 2010

Note : there is no trusts between both AD forest currently.

We would migrate the mailbox from AD Forest A to AD Forest B and i need the complete list of flows and AD prerequisites for the MAILBOX cross-forest migration.

thanks a lot in advance.

Jiji.

Please have a look on below given informative resources which might be helps you accomplish this task.

Exchange Server 2010 Cross Forest Delegation

Exchange 2010 Cross-Forest Migration Step by Step Guide

Moreover, you can try this programmed application i.e. http://www.exchangemigrationtool.com/ to perform cross-forest mailbox migration.

• Edited by vincentburton 1 hour 41 minutes ago

Please have a look on below given informative resources which might be helps you accomplish this task.

Exchange Server 2010 Cross Forest Delegation

Exchange 2010 Cross-Forest Migration Step by Step Guide

Moreover, you can try this programmed application i.e. http://www.exchangemigrationtool.com/ to perform cross-forest mailbox migration.

• Edited by vincentburton Tuesday, May 19, 2015 5:44 AM

Hi,

This document might be helpful for you.

Create a Remote Legacy Move Request Where One of the Forests Doesn't Have Exchange 2010

https://technet.microsoft.com/en-us/library/dd876952.aspx.

Best Regards.