[lug] Thunderbird, Enigmail, and MIME encapsulation

John Hernandez jph at jph.net
Fri Dec 21 09:24:54 MST 2012

You may be able to make a Sylpheed action that calls gpg using the %p
argument to pass in the message body.  Alternatively, if you can
convince your correspondent to experiment, I think Thunderbird has a
pgp/mime option under Account settings.

On Thu, Dec 20, 2012 at 9:31 PM, Jed S. Baer <blug at jbaer.cotse.net> wrote:
> Hi Folks.
> Having some trouble with encrypted e-mail. But before I spend a bunch of
> time digging into it -- setting up a test environment with Thunderbird,
> reading RFCs etc., I thought I'd bounce it up here for a sanity check. I
> could be just way off right at the start.
> I've used encrypted e-mail in the past, no problem. I use Sylpheed and
> GnuPG. I recently started correspondence with someone who uses
> Thunderbird and Enigmail, on a Mandriva system. Problem is, the mail I
> get from her looks like:
>> Content-Type: text/plain; charset=ISO-8859-1
>> Content-Transfer-Encoding: 8bit
>> -----BEGIN PGP MESSAGE-----
>> Charset: ISO-8859-1
>> Version: GnuPG v1.4.11 (GNU/Linux)
>> Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/
>> hQEOA8/jfDlMPiLoEAP/WDub4fJCHGYQ1SMdNu4f/ys0OJkj3HXWTGsowS7cxpq4
> [snip]
> Sylpheed doesn't realize this is something to decrypt.
> I'm expecting encrypted mail to look more like:
>> Content-Type: multipart/encrypted; protocol="application/pgp-encrypted";
> followed by the appropriate boundaries and the message block.
> So, I think this is bug in Thunderbird/Enigmail, and encrypted mail
> shouldn't be arriving with a text/plain content type. Or am I just all
> wet? (Yes, I know, if you encrypt outside your MUA, encode it, and
> paste it into the message, that's what will happen.)
> TIA,
> jed
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