I've never used a Newsgroup before... it seems a little outdated with the advanced Forum and Portal Systems we have now on the Internet.
But yeah; Outlook Express is the only thing I can think of for it which is free.
A Knight is sworn to Honour. His heart knows only Virtue. His blade defends the helpless. His might upholds the Weak. His word speaks only truth. His wrath undoes the Wicked.