Viktor Dukhovni:
> On Thu, Aug 27, 2015 at 02:02:36PM +0100, Mick wrote:
>
> > I have
> > read that implementing a Sender Rewriting Scheme may solve this problem,
> > and viewed a couple tutorials showing 'pfixtools' and 'postsrsd'. At least
> > one of those schemes re-writes the envelope for every received message which
> > seems overkill to me.
>
> That's what needs to be done.
>
> > Does anyone know if there's a table based way to get
> > cleanup(8) to rewrite on matching the local alias? canonical(5)??
>
> No. Secure SRS rewriting that does not turn your machine into an
> open relay is too complex for lookup tables.
And that is not all. Depending on the original From: domain, receivers
that enforce DMARC policy may also require that the original From:
header address is replaced with one in the forwarder's domain.
Wietse
