Repairing mime files

[brownh@hartford-hwp.com (Haines Brown)]

Years ago (OS/2?) I had a little utility that would repair the header
of a mime file so that I could un-mime it. Anyone know of such a thing
for linix/debian? My search effort failed.

Specifically, I have an acquaintance that insists on sending out
documents to a small distribution list using MS Exchange V6. The header
says X-MX-Has-Attach, but there's no mime or part header between the
message header and the MIME. That is, it goes right from To:... to the
MIME encoding.

I'm running rmail under emacs.

Haines Brown