Question : Autodiscover service

Autodiscover seems to be working, but for some clients they cannot access the out of office assistant.  The Offline address book and other features work for the outlook anywhere.  Does anyone know what would cause this issue?  Would it be the fact they are not on the domain or an OS version?

Answer : Autodiscover service

The problem is usually caused by one of the following reasons:

Reason 1: Wrong Autodiscover Service settings
Reason 2: Wrong certificate
Reason 3: Wrong permission settings on the EWS virtual directory.
Reason 4: Logged on with another user account (user logged into pc with a different domain than email account ie logged into to PC as MICHAEL\Rich and logged into email server as Richard\Mike)

See the link below for detailed screen prints and documentation that will resolve your issue.

Usually is the reason 3 or reason 4, even though everyone points to the autodiscovery issues.

http://www.pro-exchange.eu/modules.php?$1&name=News&file=article&sid=686

Justin