Martin Schi?tz:
> On Mon, Oct 19, 2009 at 2:43 PM, Mark Blackman <m...@exonetric.com> wrote:
> >
> > On 19 Oct 2009, at 13:41, Paul Cockings wrote:
> >
> >> What are you trying to achieve?
> >> - why do you want anti-spam on outbound mail?
> >
> > I'd guess he has little or no control over the configuration
> > of the "internal" machines and so he's concerned about malware/botnets
> > perhaps.
> >
> That is correct!
>
> So far I restrict relay to only 'mynetworks' (IP-adresses own by us)
> and authenticated users (TLS and ssl).
> But I would like to do further spam filter restrictions for the
> reasons Mark is pointing out?
The Postfix built-in features block bad clients, primarily.
You want to block bad content. Therefore you need deep content
inspection (i.e. not built into Postfix).
Wietse
