SBS 2003 Exchange stopped working remotely
Posted on 2013-01-20
As of this morning, users outside the LAN cannot access Exchange. Internal users are still getting emails.
In the event log at the time Exchange remote connectivity was lost there are the following event logs.
LDAP Bind was unsuccessful on directory FZ1.xxx.local for distinguished name ''. Directory returned error:[0x34] Unavailable.
Process MAD.EXE (PID=3280). All Domain Controller Servers in use are not responding: