Autodiscover can be a real PITA. A few things to check: Make sure you have the latest Exchange service pack installed. There are authentication issues with the base Exchange 2k7 and Autodiscover. Make sure your 3rd party certificate has the autodiscover entry on the SAN. If your domain is contoso.com, you need a SAN entry that says autodiscover.contoso.com. Wildcard certs don't work well with autodiscover. Those are the most common problems I have run in to, if that does not fix it there are a number of Exchange & IIS configurations that need to be checked. |