David Champion wrote: > I'm not sure about this. The mtime on a maildir message file does > not have to be the same as the delivery date of the message, > Unixly speaking. Does the maildir "specification" (ahem) or mutt's > implementation actually guarantee this to a point sufficient to delete > mail without worry?
You can't rely on the mtime to be accurate. Mutt can't tell if you've touched files externally to it, and the mtime is not preserved when copying a message to another mailbox.