We have an SBS 2008 server with Exchange 2007 SP2. Some outlook clients can't access the Out of Office assistant and their outlook sometimes crashes when trying to use it.
All users 'can' send and recieve email however if they initiate a manual send and recieve and you view the progress, it fails to complete and just sits there at say 33%.
I have posted several questions on here regarding this to no avail.
We are using discontiguous name space for the internal and external namespace, could this be causing the issues if not configured correctly.
Many people have mentioned that it could be an issue with the autodisover. The autodiscover automatically set itself to remote.domainname.local when setting up exchange and I don't really understand exactly how autodiscover works and how it should be configured.