Re: rmail-forward

[Kenichi Handa <handa@m17n.org>]

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In article <E1Pdatz-0001V4-T7@fencepost.gnu.org>, Eli Zaretskii <eliz@gnu.org> writes:

> rmail-forward lately began to format the forwarded messages weirdly.
> It doesn't use the specially formatted lines delimiting the message,
> that it used to use before, and instead inserts some weird looking
> delimiters such as this one:

>   

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> Is this a bug or a feature?  If the latter, what is its purpose?

It's a feature.  When rmail-enable-mime is non-nil, message
forwarding is also done in MIME style; i.e., the forwarding
message is embeded in message/rfc822 entity of a multipart
body.  That whole work is done by
message-forward-make-body-mime of message.el which I didn't
touch.

It seems that it'a policy of message.el to include all
headers in a forwarding message except those matching with
message-forward-ignored-headers (which currently doesn't
include X-RMAIL-* but should include).  MIME-capable MUA
(includihng rmail-mime) anyway prunes the forwarded header
accoding to it's policy (e.g. rmail-ignored-headers).

Please test to forward some mail to yourself and see how
it's shown to you by rmail.  Re-forwarding that forwarded
message generates a further nested MIME message.

By the way, I first tried to use
message-forward-rmail-make-body instead of
message-forward-make-body-mime, but it signals an error
while trying to un-prune the messsage header.  It seems that
message-forward-rmail-make-body is not yet adjusted for the
new mbox-based rmail code.

---
Kenichi Handa
handa@m17n.org