On Mon, Nov 30, 2015 at 11:27:36AM +0100, Evreh Choneh wrote:
> I've a domain A for all my users. For some users I have a domain B and I
> would like to do this :
>
> a) A user from domain B can send a mail only for another user of B
A policy service can impose that restriction on the message envelope.
Do this as close as possible to the user-agent (at the submission
service or in the user's MUA if you can control rules at the
desktop).
> b) All mail from B use the certificate of domain B to crypt and sign mail
>
> Can Postfix do that ? And how I can find documentation on that ?
Postfix is PGP and S/MIME agnostic. Enforcement of content encryption
requires plugins, milters, content filters, SMTP proxy appliances...
--
Viktor.
