Is there a relatively pain-free method of moving distribution groups from a child domain to the root domain without a loss of membership or email delivery? We've got a child domain whose users have been migrated to an external domain (connected back to Exchange with linked mailboxes), and I need to move their distribution groups and contacts back into the root domain before we decommission the child domain. Has anyone here performed a move like this? Any speed bumps to beware of? This is an Exchange 2010 SP2 organization. Thanks, Mike

You might try using ADMT. Test it first! You will probably have to perform special configuration for the mail properties. Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

Hi Mike, Any update for your issue? Could you please describle more information about your email system for the two domains, and then we could give you more suggestion. Try above suggestion, if you still have issue, please feel free let us know. Regards! TechNet Subscriber Support in forum if you have any feedback on our support, please contact tngfb@microsoft.com Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. Gavin TechNet Community Support

Use ADMT as ED suggested. However you will need to do some pre-configuration as ADMT out the box does not migrate DLs, only AD security groups. You must configure ADMT and modify the attribute exclusion to include mail enabled attributes. ADMT by default excludes exchange attributes to prevent issues with provisioning mailbox users prior to Exchange 2010 SP1. As far as contacts you ADMT doesn't support, for contacts you can use ldifde. Exchange 2010 New Forest Migration Provisioning Distribution Lists http://msexchangetips.blogspot.com/2011/01/exchange-2010-new-forest-migration.html James Chong MCITP | EA | EMA; MCSE | M+, S+ Security+, Project+, ITIL msexchangetips.blogspot.com

Hi, If the two domains are in the same forest will the MoveTree utility work? Mike Brown.

Sure looks like it. How to Use the MoveTree Utility to Move Objects Between Domains in a Single Forest http://support.microsoft.com/kb/238394 James Chong MCITP | EA | EMA; MCSE | M+, S+ Security+, Project+, ITIL msexchangetips.blogspot.com

Hi MGBLEEDS, Any update for your issue. Regards! TechNet Subscriber Support in forum if you have any feedback on our support, please contact tngfb@microsoft.com Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. Gavin TechNet Community Support