replying to an attachment?

Greetings,

I could use some advice on how to reply to a message which is a MIME
attachment inside of another message.  In this particular case, the
original message was sent to an Exchange mailbox, and then (for various
reasons I won't go into here) forwarded as an attachment to myself.

Naturally, the return address(es) I want to reply to are actually
in the attachment, so the normal repl/replcomps mechanisms never
sees those when replying to the "outer" message.  Modern mail reader
programs these days have a way to "open" such a nested message and
then operate on it normally, but I can't see an obvious method in
exmh as it is.  Maybe someone has some Tcl/Tk code that does this?

In case it matters, I'm using exmh-2.7.2 and nmh-1.3, on the
OpenIndiana-151a operating system, x86_64 platform.

Thanks and regards,

-- 
Marion Hakanson <[email protected]>
OHSU Advanced Computing Center