On Sun, 23 Oct 2011 05:57:41 -0400, Richard Stallman <rms@gnu.org> wrote:
> Why not make notmuchmail handle multiple messages per file?
> 
> I have around 8000 files, and most of them contain hundreds of
> messages.  I'd hate to split them out into one message per file.

I don't think anyone would be opposed to such a feature, but I'm also
not aware of anybody working on it.

Just to be sure, are you aware of mairix which claims to support rmail
out of the box? I haven't used it, so I can't say anything about how
nice that support is.

David