Re: Sending attachments

[Richard Stallman]

    The other things to address are hiding the mml code it inserts (I'd 
    suggest a file icon image for graphical displays, or buttonized 
    [Attached File] for text mode, but RMS has expressed a preference for 
    seeing the actual base64 or quoted-printable content that would be sent, 
    so another option is to immediately call the function that transforms 
    mml to actual mime instead of calling it in the send hook).

I think it would be clearer that way, but I don't think it's important
enough to make a big deal about.

This can be done with a simple extension to mml.
mml-attach-file could optionally convert to mime when it finishes.

mml-attach-file could also detect that the message has already been
converted to mime, in which case it could unconvert using mime-to-mml
before attaching the file.

This, together with the suggestion to ask all the questions only with
C-u, would make it do what I have in mind.