🚀 go-pugleaf

Boris:
 > One nice, related feature would be the ability to save a message with some
 > indication (ie, a .msg suffix) that tells emacs that it is a
 > partially-completed message and should therefore be edited in mail-mode.

Kyle:
 > I think it would be better to append such messages to dead.letter
 > iun such a way that dead.letter could be visited and you could
 > continue editing the message.

That sounds reasonable.  Another choice would be to append them to mbox
instead of dead.letter, since my convention is that mbox contains things
that need to be dealt with.  So if you include this capability, by all
means make which folder to append messages to a user option.
(I used to use mh this way, with Draft-Folder set to Inbox, before I
made the happy switch to VM).

 > In version 5 of VM, you can use vm-mode in auto-mode-alist just
 > like any other major mode.
 >   ...
 >   ("~/mail/" . vm-mode)
 >   ...

Thanks for the hint!  I guess I need to be more consistent in naming and/or
placement of folders to make this useful though.

Bng