/$LISTNAME/index.atom.xml -> Atom feed
/$LISTNAME/all.atom.xml -> Atom feed, includes replies
/$LISTNAME/m/$MESSAGE_ID.html -> HTML content (short quotes)
/$LISTNAME/index.atom.xml -> Atom feed
/$LISTNAME/all.atom.xml -> Atom feed, includes replies
/$LISTNAME/m/$MESSAGE_ID.html -> HTML content (short quotes)