Knowledge Base

XFOR: NNTP Authentication Denied with Space in NT Password

Article ID: 166537

Article Last Modified on 10/28/2006

Microsoft Exchange Server 5.0 Standard Edition

This article was previously published under Q166537

SYMPTOMS

When you try to access NNTP newsgroups, authentication may fail. A 501 (authentication failure) error message appears in the application log.

CAUSE

The NNTP authentication algorithm cannot handle a space in a user's password.

WORKAROUND

Use passwords without spaces.

RESOLUTION

Apply the fix described below. The NNTP authentication algorithm was fixed to properly handle a password that contains spaces.

STATUS

Microsoft has confirmed this to be a problem in Microsoft Exchange Server version 5.0. This problem was corrected in the latest Microsoft Exchange Server 5.0 U.S. Service Pack. For information on obtaining the service pack, query on the following word in the Microsoft Knowledge Base (without the spaces):

S E R V P A C K

Additional query words: log in fail

Keywords: kbusage KB166537