I just aqquired a new server/domain that is having issues with its out of office not working correctly in outlook. It works fine in OWA, just not the application. When I attempt to do an autodiscovery test from outlook, it fails with error code 503 on autodiscovery.xml I did a few powershell commands, and verified the link is going correctly to my server. I"ve done some googling, but at this point I'm at a loss. Any ideas, or new areas where I should look?

See below thread for help http://social.technet.microsoft.com/Forums/en-US/exchangesvrclients/thread/ca6bdb57-4220-4fa1-b850-c4b13b993588/ Anil

This article has helped a little. However, now I'm having an issue with the autodiscovery application pool in IIS. Its stopped, and if I start it, it starts to work again, however after 2 minutes, it stopes again with. Event viewer reports with error code 4999. Watson report about to be sent to dw20.exe for process id: 8120, with parameters: E12IIS, c-RTL-AMD64, 08.02.0176.002, AutoDisc, unknown, M.E.A.P.O.O.S.M.E.A.P.O.O.IConfigCache.Freshen, System.ArgumentNullException, ce72, unknown. ErrorReportingEnabled: False

I changed the apllication pool from classic to intigrated, and it now stays up, but is now having issues with error code 500.

Hi Ricardo_Lopez, For this issue, I want to clarify the following information before we go further: 1. Please paste the description of the error cod 500 here in your next post. If the error code 500 returns from IE, please refer to KB 943891. 2. Please check the event log. If there is any error, please paste in your next post. 3. If the autodiscover issue still exists, please do a (Outlook Autodiscover) test at http://exrca.com/ , and paste the error in your next post. Please help me to collect the information at your convenience, with the information, we can help you more efficiently. Thanks, Evan