If you are with a big headache because always is shown up a pop up saying: The Microsoft Exchange administrator has made a change thats require you quit and restart Outlook……. here have some sugestions…..
Do you remember that public folder that was useless? And you have deleted by ADSIEdit?
Yes, really, can be your problem…. check the remains…..
Go to ADSIEdit -> Configuration -> CN=Services -> CN=Microsoft Exchange -> CN= Your Organization -> CN= Administrative Groups -> CN= Exchange Administrative Group -> CN= Databases…….
Please check the attribute “MSEXCHHomePublicMDB” on all databases. If is pointing to old object(that you have deleted) please clear the value.
You can also check the DNS, Autodiscovery Authentication types, Outlook Anywhere, Outlook Profile, antivirus and this KB’s: