Thunderbird / Enigmail / Autocrypt

Mark H. Wood mwood at
Mon Nov 23 16:15:43 CET 2020

On Mon, Nov 23, 2020 at 07:08:12AM +0100, Matthias Apitz wrote:
> El día lunes, noviembre 23, 2020 a las 03:03:54a. m. +0100, Johan Wevers escribió:
> > On 22-11-2020 12:38, Juergen Bruckner via Gnupg-users wrote:
> > 
> > > I don't understand why HTML in e-Mails is so important for some people.
> > 
> > I agree on a personal level, but if you use your email also to
> > communicate with business users (usually using Outlook) it would be nice
> > to get their mails in a human readable format. Which requires,
> > unfortunately, usually html.
> Since ages human read mails in ASCII or UTF-8 text. Why you think this
> is not a "human readable format"?
> HTML as e-mail (read carefully: as email, not as attachment) should be
> forbidden because most MUA automatically fetch additional remote content
> which violates privacy and can fetch bad content into your system.
> You're warned.

I consider that Mutt gives me the best of both, when I configure it:

  auto_view text/html

and in .mailcap:

  text/html; \
        lynx -dump -force_html %s; \

The text is flattened.  The result is sometimes ugly, but readable.

Attachments (such as images, or things purporting to be images) are
presented separately, and I can open them if I choose.  (Or I can copy
them out and inspect them in other ways, if I'm suspicious.  Examining
the un-rendered structure and content of some malicious messages can
be briefly entertaining.)

I would be mildly surprised to learn that my co-workers, outside of my
immediate workgroup, are even aware that I don't see their emails
rendered the way they do.  And nobody has ever told me, "your message
looks funny," except an occasional comment that someone couldn't open
the "attachment" (meaning the PGP/MIME signature).  Those stopped when
I got a corporate X.509 certificate and configured Mutt to use S/MIME
for internal mail.

Other console MUAs probably can do similar things when configured to
do so.

Mark H. Wood
Lead Technology Analyst

University Library
Indiana University - Purdue University Indianapolis
755 W. Michigan Street
Indianapolis, IN 46202
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