[H-GEN] Reading signed emails using OE

[Michael Anthon]

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I had a problem that's been nagging me for a while, that of OE not correctly
showing signed emails from various MUAs (mostly seems to be mutt).
Everything I have found indicates this is a problem with OE's compliance
with certain RFCs which isn't terribly surprising [1] so I figured out a
procmail recipe that "fixes" the messages (I hope).  The basic idea is to
rewrite the Content-Type header from

Content-Type: multipart/signed; micalg=pgp-sha1;
        protocol="application/pgp-signature"; boundary="h31gzZEtNLTqOjlF"

to

Content-Type: multipart/mixed; boundary="h31gzZEtNLTqOjlF"

Anyway, the recipe I came up with is this...

:0 H
* ^Content-Type: multipart/signed
{
  BOUNDARY=`formail -x Content-Type -c | sed -e
's/.*boundary="\([^"]\+\)"/\1/'`

  :0 Afhw
  |formail -i "Content-Type: multipart/mixed; boundary=\"$BOUNDARY\""
}

This seems to work for the test message I was passing through it.  Can
anyone see a problem with this or maybe a "better" way to do it?

Cheers
Michael

[1] Apparently it's not the only one that suffers from this problem either,
I found reports of the OSX Mail.App also exhibiting similar issues.


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