Re: [exim] pretend a different domain

On Tue, Aug 09, 2016 at 05:57:52PM +0200, hw wrote:
> Evgeniy Berdnikov schrieb:
> > On Tue, Aug 09, 2016 at 04:14:49PM +0200, hw wrote:
> > > with several domains declared as local domains, users can
> > > send and receive messages with sender addresses the domain
> > > part of which is any of the local domains.
> >
> > There are no built-in restrictions for the sender's domain part:
> > by default senders can eject e-mails from arbitrary envelope
> > addresses and with arbitrary headers.
>
> Then why does exim add a Sender: header?

Exim may add such a header.

> > > Is there a way to make it so that the recipient of a message
> > > sent from <user@???> cannot figure out that the message
> > > was actually sent from <user@???> when the host exim
> > > runs on has a primary hostname like mx.domain-a.net?
> >
> > You may delete some headers in Exim routers or transports.
> > Look for headers_remove options in documentation (ch. 47 p. 17).
>
> That doesn??t work for the Sender: header ...

In ch.47 there are also some words about control=submission/... with
domain=, name= and sender_retain= qualifiers.
--
Eugene Berdnikov