I am trying to move mailboxes between 2 different forests but when I run the move-mailbox command I get the following error:
An Active Directory error 0x51 occurred when trying to check server <server name> suitability: 'The LDAP server is unavailable'
I have used the ldp tool and get the same error when trying to connect to either my source or target exchange servers.
If I use the ldp tool to connect to either my source or target domain controllers it connects just fine. I have checked the firewall settings on my target exchange server and have opened up all TCP and UDP ports as well as trying turning the firewall off completely.
My target exchange server is running windows server 2008 as is my source exchange server. Both Exchange servers are 2007.
I would think it was a DNS issue except I can't make a ldap connection to my exchange server when running the ldp tool on the exact same server.
Any thoughts or ideas would be greatly appreciated