We are seeing an issue whereby users attempting to open an additional mailbox from within outlook experience an error " The name cannot be resolved. The action cannot be completed "
This occurs immediately after pressing the Add button - therefore cannot be related to the mailbox we want to add.
I've attempted new profiles and tested with newly created users but the same problem exists.
The server was migrated from SBS 2003 to SBS 2008 some time ago.
Any help appreciated