HTTP 500 Error When Attempting to Browse Outlook Mobile Access with an Exchange 5.5 Mailbox (282213)

SYMPTOMS

If you are a newly created user, and you attempt to log on to Outlook Mobile Access, if your mailbox resides on a Microsoft Exchange Server 5.5 computer, the following error message may be displayed on your wireless device:

HTTP 500

The application log on the server that is running Outlook Mobile Access reports the following information:

Internal Error in Module: Airstream OPA WML Rendering Module

Error Code: 80070057
Description: The parameter is incorrect.

User: username
Host:
Path:
Query String:

CAUSE

This issue can occur because the legacyExchangeDN attribute on the Active Directory user object has not been stamped on your user object.

If your system is configured with only a one-way connection agreement from Windows to Exchange Server on the Active Directory Connector (ADC), this attribute is not written to the user object. The Exchange Server 5.5 data provider requires this attribute for Outlook Mobile Access.

RESOLUTION

To resolve this issue, reconfigure the current connection agreement so that it is a two-way agreement, or create a new agreement from Exchange Server to Windows. After you complete this procedure, manually replicate the ADC to create the legacyExchangeDN attribute. If you do not do this, the attribute is not created until the next time the ADC is scheduled to run.

After Exchange 2000 is introduced into the organization, this issue no longer occurs because the legacyExchangeDN attribute is written when the user mailbox is created.