Two special entries are provided as default. These are backbone and internet. Both provide --- in bang-path notation --- the path to the nearest backbone site, and the site that understands RFC 822-style addresses (user@host). The default entries are
You will not have to change the internet entry if you have smail or sendmail installed, because they understand RFC 822-addressing.
The backbone entry is used whenever a user posts to a moderated group whose moderator is not listed explicitly. If the newsgroup's name is alt.sewer, and the backbone entry con- tains path!%s, C News will mail the article to path!alt-sewer, hoping that the backbone machine is able to forward the arti- cle. To find out which path to use, ask the news admins at the site that feeds you. As a last resort, you can also use uunet.uu.net!%s.