Will do Plexer. The state of the situation at present is that the domain controllers are being rebooted. A person has suggested there may be a fault in the active directory.
Thanks for your reply. The person doesn't know what the message tracking system is (to be honest neither do I) I am now informed that this is only affecting certain users. A real puzzle.
I hope someone can help. I have a customer who reported yesterday that any internal emails are undeliverable. This happened suddenly. External emails are ok. Any ideas please ?
Rob