Outlook error - Exchange server is unavailable
Posted on 2005-02-28
Since we changed from McAfee anti virus to Eset NOD32 (Enterprise) antivirus about 3 days ago, the Exchange Server has been giving trouble. It malfunctions in some way that produces the above error message - "Exchange server is unavailable" - when running Outlook clients - all users are affected the same.
The Exchange services seem to all be running ok, and the Information Store service can be restarted without problem.
The only way it seems to restore normality is to reboot the server. The Exchange server runs fine again for another 18 hours or so - usually giving trouble again some time during the early hours of the morning.
Nothing obvious in the event log.
Is this an RPC issue?
Is there logging in Exchange that might help on this?