Signing all outgoing mails on MTA, not on MUA

Harakiri harakiri_23 at
Fri Mar 27 16:54:25 CET 2009

You are better off buying a comerical product, parsing e-mails specific for PGP (except pgp/mime) is not an easy task and frankly, without very good knowledge of eml standards (or richtext outlook msg format files) you will not achieve anything good

gnupg will just do the signing for you, there is no mime parser - that is your task - and its a though one

--- On Fri, 3/27/09, Christoph Gröver <grover at> wrote:

> From: Christoph Gröver <grover at>
> Subject: Signing all outgoing mails on MTA, not on MUA
> To: gnupg-users at
> Date: Friday, March 27, 2009, 10:47 AM
> Hello List,
> We'd like to be able to sign all our outgoing mails.
> But not on each client system, which would mean everyone
> has to install
> some plugin or gpg-aware mail client, but on the mailserver
> itself.
> This way nobody has to think about it and signing works
> transparently
> for everyone. We would have one key for all, like a
> corporate key.
> Is this possible ?  I understand we will have to parse and
> rebuild the
> mime structure for this ?
> What do you think ?
> Thank you for your time,
> Bye
> -- 
> Christoph Groever, grover at
> _______________________________________________
> Gnupg-users mailing list
> Gnupg-users at


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