XWEB: Err Msg: Requested Header Not Found (166225)
The information in this article applies to:
- Microsoft Exchange Server 5.0
This article was previously published under Q166225 SYMPTOMS
When you attempt to access a mailbox on a Microsoft Exchange Server
computer by way of the Web, you may receive the following error message:
Internet Explorer cannot open the Internet site
http://<server>/exchange/LogonFrm.asp?Mailbox=<alias>.
The requested header was not found.
NOTE: <server> is the name of the server running Internet Information
Server (IIS) and the Active Server Components, and <alias> is the alias of
the Exchange Server mailbox you are attempting to sign in from.
CAUSE
This error will occur if the only password authentication configured for
IIS is Allow Anonymous.
RESOLUTION
To resolve this problem:
- To log on to an Exchange mailbox, you must have either Basic (Clear
Text) and/or Windows NT Challenge/Response Authentication on the
computer running IIS. This is required in order to allow IIS to pass
your user credentials on to a computer running Exchange Server.
| Modification Type: | Minor | Last Reviewed: | 4/28/2005 |
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| Keywords: | kbusage KB166225 |
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