Thanks for the clarification, relay_domains is now set .
--
Alan Thew alan.thew@???
Computing Services,University of Liverpool Fax: +44 151 794-4442
On Wed, 14 May 1997, Philip Hazel wrote:
> On Wed, 14 May 1997, Alan Thew wrote:
>
> > I thought I had this right and had set the following
> >
> > sender_net_accept_relay = "138.253.0.0/255.255.0.0:\
> > ....
> > ....
> >
> > (included our Class C nets).
> >
> > I may have done something stupid with the netmasks but my (apparently)
> > wrong understanding was that RCPT TO:<> containing addresses in the
> > specified nets would be allowed but others would not.
>
> No, you have misunderstood; sender_net_accept_relay specifies nets from
> which relaying to *any* address is permitted. The option which specifies
> which domains you will relay to from any host is relay_domains.
>
> > I'm trying to stop relaying where mail from:<> and rcpt to:<> are both
> > offsite.
>
> Set sender_net_accept_relay to your local nets. That allows hosts on
> your local nets to relay to anywhere.
>
> Set relay_domains to any domains other than those in local_domains that
> are on your site. That will allow all hosts on the Internet to relay to
> those domains.
>
> Hosts that do not match sender_net_accept_relay will then not be able to
> relay to domains that are not in relay_domains (or to your
> local_domains, of course).
>
>
> --
> Philip Hazel University Computing Service,
> ph10@??? New Museums Site, Cambridge CB2 3QG,
> P.Hazel@??? England. Phone: +44 1223 334714
>
>
