I have one Exchange Server 2000 installation which was displaying displaying the following error when I tried to schedule 2 new accounts as resources:
No Free/Busy information could be retrieved
This error occured specifically with 2 new user accounts that I have created, I didn't get the problem with any accounts that were already in the Directory!
I have applied the fixes shown in the following article:
Now I no longer get the error message but I can not actually book the time, it simply won't allow me to.
It is also worth noting that in the Exchange organisation there is 1 mail server which no longer exists. This will be removed at some point.
Has anybody ever come across this before? If not are there any suggestions on further reading to resolve this problem?