Microsoft KB Archive/268785

= XFOR: The NEWNEWS and XOVER Commands in Exchange Network News Transfer Protocol =

Article ID: 268785

Article Last Modified on 10/28/2006

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APPLIES TO


 * Microsoft Exchange Server 5.5 Standard Edition

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This article was previously published under Q268785



SUMMARY
A newsgroup is a collection of messages posted by individuals interested in a particular subject. A newsfeed is essentially a specified collection of newsgroup articles that are fed by one server to another.



MORE INFORMATION
NewNews is the supported command used to pull newsgroups down from one news server to another. This is described fully in Request For Comment (RFC) 977, at the Internet Engineering Task Force (IETF) Web site:

http://www.ietf.org/rfc/rfc977.txt

Usage: NewNews date time [Greenwich mean time]

XOVER is a Network News Transfer Protocol (NNTP) extension that a newsreader client uses to list the common headers of articles in a news group.

It is generally used to build your client's list of messages with the subject lines, dates, and so forth.

For more information, see the draft NNTP extensions, (9.4.8 OVER) at the following IETF Web site:

http://www.ietf.org/internet-drafts/draft-ietf-nntpext-base-10.txt

Usage: XOVER [range]

On occasion you may come across the issue where an Internet service provider (ISP) has turned off access to the NewNews command, which is something that Microsoft NNTP supports.

For additional information how to disable support for pull from an Exchange news server, click the article number below to view the article in the Microsoft Knowledge Base:

173946 XFOR: Disabling Support for Pull Newsfeeds

Also, if the ISP is running Microsoft NNTP, and has a feed configured for this customer, then our server can also restrict the set of commands that the client may issue over the session.

Oftentimes ISPs run NNTP servers, in which case the customer would want to pull a feed from the ISP without using the NewNews command. Unfortunately, the only form of pull feed Microsoft NNTP supports is that which uses the NewNews command.

In this situation, the customer needs one of the following scenarios to exist to make this work:
 * The ISP must allow NewNews commands.

-or-
 * The ISP configures a push feed to the customer, who configures a corresponding accept feed in Microsoft NNTP.

Additional query words: INN pull feed

Keywords: kbfaq kbinfo KB268785

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