Hi All,
For months our Exchange servers (2013 - 1 x CAS - 2 x MBX (Disparate Datacenters), have sat there chundering away, happily working nothing wrong, patching when patched.
Two days ago we started getting a PRX4 Error - rebooting hasnt cleared it to down and it still exists, its currently affecting only one site, the other (DR) site isnt affected and can process email happily.
Does anyone have any ideas? My google fu appears to be letting me down at the moment.
Thanks in Advance
John