"500 Server Error" error message occurs when you access mailbox by using Outlook Mobile Access (297414)

SYMPTOMS

When you attempt to browse your mailbox by using Outlook Mobile Access you may receive the following error message:

500 Server Error

There are no event ID messages logged in the Application Event log or a system log generated. When you examine the Internet Information Services (IIS) W3SVC log files, you may note the 500 Server Error, however, no other information is provided.

CAUSE

This behavior can occur because the user topology that you have selected for Mobile Information Server requires that the Exchange 2000 Server /domainprep switch be run in the domain that contains the wireless users accounts. The /domainprep switch adds the Recipient Update Service (RUS) to that domain. When the RUS is not installed in that domain, the users do not get the proper fields populated in Active Directory for mailbox access.

RESOLUTION

To resolve this behavior, run the Exchange 2000 Server /domainprep switch in the domain that contains the wireless accounts as per the following table:

Switch Configuration	Exchange 2000 Server /domainprep Switch Required?
Same domain account as your user account	No
Wireless -w accounts in the same domain	No
Wireless domain in the same forest	Yes
Wireless domain in the same forest with Access User	No
Separate Wireless forest	/forestprep and /domainprep switch
Separate Wireless forest with Access User	No

Verify that the RUS is setup in the domain and that it functions. In addition, allow time for the RUS to update the users, or force an update or rebuild.

MORE INFORMATION

For information about security topologies for Mobile Information Server refer to one of the following:

Chapter three, page 35 (Acrobat page number 39 of 235) of the Corpinstall file, that is found at the following location on the Mobile Information Server CD-ROM:
X:\English\docs\corpinstall.pdf
The following Microsoft Mobile Information Server Support Web site:
http://www.microsoft.com/miserver/support/

For additional information about the RUS, click the following article numbers to view the articles in the Microsoft Knowledge Base:

246127 How to check the progress of the Exchange Recipient Update Service

253838 How the Recipient Update Service applies system policies