Monday, June 4, 2012

Offloading mailboxes from Exchange Online to on-premise Exchange Server 2010

When a user mailbox is created in Exchange Online by the "Create Remote Mailbox" feature in Exchange Server 2010 and the mailbox of this user needs to be moved back to the on-premise Exchange 2010 environment, it will end up in the error "Exception has been thrown by the target of an invocation.

This was clearly a bug in Exchange Server 2010 SP2.