but when the mailbox this in other Organization, the Mailbox cannot Send and Receive Emails. Hi Carlos, Is there any NDR(bounced mail) when users send/receive mails? It happens with internal or external mails? If you create a new test mailbox in the Exchange 2010(target forest) directly, what's the result? Please check whether the following similar post will be helpful. Cross forest migrated users cannot receive e-mail http://social.technet.microsoft.com/Forums/en-US/exchange2010/thread/0cf296b6-b939-41c7-8101-04c9ee197c4d/ Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.Frank Wang TechNet Community Support

Make sure that the mailboxes are connect to the right users and have the right from the new domain. After the maigration you should add the user after migrating both the user and mailbox.

Hi Team. I have a project for move objects: Users, Computers and Mailboxes in Cross Forest. For Active Directory objects use NetIQ Tool, (is a ADMT of Microsoft), move Users and Computers sucessfully. For Mailboxes, Use Exchange Shell with command New-MoveRequest. The Mailbox migrate Sucessfully and migrate all content (Inbox, Contacts, Calendar), but when the mailbox this in other Organization, the Mailbox cannot Send and Receive Emails. Configurations that need to in destination Organization. I appreciate you help. Regards,

Adding: Exist trust relationship between two forest.

Hi Carlos, Any updates?Frank Wang TechNet Community Support

but when the mailbox this in other Organization, the Mailbox cannot Send and Receive Emails. Hi Carlos, Is there any NDR(bounced mail) when users send/receive mails? It happens with internal or external mails? If you create a new test mailbox in the Exchange 2010(target forest) directly, what's the result? Please check whether the following similar post will be helpful. Cross forest migrated users cannot receive e-mail http://social.technet.microsoft.com/Forums/en-US/exchange2010/thread/0cf296b6-b939-41c7-8101-04c9ee197c4d/ Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.Frank Wang TechNet Community Support