Re: [exim] Recovering DKIM signature from read email

On 23/08/17 16:20, Leonardo Boselli wrote:
> Does the dkim implementation on exim sign the whole message ?
> The reason I ask is because all the places that I have read say that
> DKIM may sign the whole or part of messge, and i have found no option to
> specify how much of messge is signed.

The entire body is signed; there is an option to specify which
headers are signed.

> I would like to sign all messages that have been submitted so the
> recipient not only can authenthicate the sender machine, but be also
> sure of the integrity of the content.

You should be aware that DKIM does not play nicely with mailinglists,
which traditionally do modify the body of mails to them.

> It is required also that the recipient could handle the message
> (possibly as an attachment) to a third party that could verify again the
> authenticity of the message (same for the sender that would receive back
> a copy to have a receipt that he really gave the messge to that server.
> Is it possible ?

Yes.
--
Cheers,
Jeremy