XFOR: Exchange Server NNTP Service Fails With 500 Command Not Recognized

• Microsoft Exchange Server, versions 5.0, 5.5

SYMPTOMS

The Internet News Service fails to receive a push feed from an authorized Internet news provider. When the newsfeed provider issues an IHAVE command to the Exchange Server computer, the following error message may occur:

500 command not recognized.

CAUSE

The Internet News Service has failed to validate the newsfeed provider as an accepted server.

RESOLUTION

In addition to specifying the Remote USENET Site Name and Host Name, the IP address or fully qualified domain name of the newsfeed server needs to be added to the Additional Inbound Hosts (Remote host name) field. It is recommended that the IP address be used to avoid any name resolution problems.

When configured correctly, the "Newsfeed type" listed on the General tab of the Newsfeed will read either "Newsgroups are accepted inbound," or "Newsgroups are accepted inbound and pushed outbound." You cannot edit the newsfeed property after it has been configured. When you are running the Newsfeed Setup Wizard, be sure that the "Inbound newsfeed type" is set to "Accept incoming messages (typical)."

STATUS

Microsoft has confirmed this to be a problem in Microsoft Exchange Server, version 5.5.

Additional query words: nntp, ihave, command, telnet

Keywords : exc5 exc55
Version : winnt:5.0,5.5
Platform : winnt
Issue type : kbprb