message: Buffer Entry

 
 2.1 Buffer Entry
 ================
 
 You most often end up in a Message buffer when responding to some other
 message of some sort.  Message does lots of handling of quoted text, and
 may remove signatures, reformat the text, or the like—depending on which
 used settings you’re using.  Message usually gets things right, but
 sometimes it stumbles.  To help the user unwind these stumblings,
 Message sets the undo boundary before each major automatic action it
 takes.  If you press the undo key (usually located at ‘C-_’) a few
 times, you will get back the un-edited message you’re responding to.