Exchange mutilation of multipart/encrypted
Brian Sniffen
bsniffen at akamai.com
Mon Dec 1 11:28:24 PST 2014
My employer uses an Exchange server in place of an MTA. It mutilates
multipart/encrypted messages, so that when I receive a PGP/MIME message
the Emacs-notmuch interface shows me:
[ multipart/mixed ]
[ text/plain ]
[ ATT00002: application/pgp-encrypted ]
[ msg.asc: application/octet-stream ]
When I used Gnus heavily, I wrote a little program to un-mutilate
PGP/MIME mail:
~~~
(defun repair-multipart-encrypted (article)
"Switch a multipart/mixed header to multipart/encrypted.
This helps cope with broken Exchange servers."
(interactive (list (gnus-summary-article-number)))
(gnus-with-article article
(message-narrow-to-head)
(goto-char (point-min))
(search-forward "Content-Type")
(search-forward "mixed")
(replace-match "encrypted; protocol=\"application/pgp-encrypted\"" t t)
(widen))
(let (gnus-mark-article-hook)
(gnus-summary-select-article t t nil article)))
~~~
I'd love to have a way to tell Emacs-notmuch to treat a part as of a
different type, and provide parameters. Alternately, I'd be happy to
edit the file on disk and have it re-indexed---but that seems likely to
cause me regret. Any advice? I see
`notmuch-show-insert-bodypart-internal` and expect to call that
with a forced content-type.
Thanks,
Brian
--
Brian Sniffen
"I reserve the right to evolve my views, and state that views I previously
expressed may have been somehere along the spectrum from insufficiently
nuanced through ill-informed to dead wrong."
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