[Nmh-workers] Getting the addresses with comments of sent messages

[norm]

I have a directory containing a slew sent messages. I would like a list of all
of the addresses, including comments, of all of these messages. Does anybody
have a script that will do this?

whom does not seem an appropriate tool for this. It does not include comments
and it does not work well for sent messages; it fails with complaints like:

        whom: illegal header line -- Received:
        whom: illegal header line -- Message-ID:
        whom: illegal header line -- Date:

    Norman Shapiro