access-type support in Mutt for remote documents?

[msquared]

One of the mailing lists that I am on occasionally has MIME attachments
that -refer- to some file on an FTP site and/or mail server.  ('Refer' as
opposed to 'contain'.)

For example, the MIME portion pertaining to the remote file might look
like this:

        --NextPart
        Content-Type: Multipart/Alternative; Boundary="OtherAccess"

        --OtherAccess
        Content-Type: Message/External-body;
                access-type="mail-server";
                server="[EMAIL PROTECTED]"

        Content-Type: text/plain
        Content-ID:     <[EMAIL PROTECTED]>

        ENCODING mime
        FILE /somewhere/bar.txt

        --OtherAccess
        Content-Type: Message/External-body;
                name="bar.txt";
                site="ftp.foo.org";
                access-type="anon-ftp";
                directory="internet-drafts"

        Content-Type: text/plain
        Content-ID:     <[EMAIL PROTECTED]>

        --OtherAccess--


Mutt happily displays this as an attachment, but says that the access
method "anon-ftp" is unknown.

How do I configure Mutt to recognise the access type and to retrieve the
appropriate document/attachment?


             2
Regards, /|/|
        /   |