From: Magnus Bäck (magnusdsek.lth.se)
Date: Tue May 01 2007 - 23:34:48 CDT

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On Wednesday, May 02, 2007 at 04:21 CEST,
     Paul Bruce <admincais.com.au> wrote:

> Is it possible to implement some simple encryption with Postfix ?
>
> Im trying to automatically encrypt any mail addressed to a particular
> domain. All mail, regardless of the destination, is then sent off to
> another mail server.
>
> The email client then downloads the email normally , and applies a
> decryption plugin.
>
> The reason why I want this method over a digital certificate system is
> that I need a great deal of flexibility and I do not want to be locked
> into users having digital certificates.
>
> I also need an auomatic system, so that all email, is always encrypted
> when sent to a certain domain, and does not rely on the user selecting
> "encrypt" and so on.

This is certainly possible, but it sounds like an awful kludge.
It will require that you write the plugin for the MUA as well
as a content filter for Postfix that will encrypt the messages.

What actual problem are you trying to solve?

--
Magnus Bäck
magnusdsek.lth.se

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