On 11 Jun 2011, at 10:18, exim@??? wrote:
> Behaviour we are pursuing with Exim, only for a particular domain:
>
> Among all the domains that are served regularly, a given domain, and only that domain, needs to follow an internal messaging system policy, i.e.:
>
> - No emails can be sent to, nor received from, any other domains, hosted on the same server or elsewhere.
> - Emails regarding that domain are accepted only if sent to, or received from, that particular domain itself.
Personally for a 2 zone setup like this I would consider running 2 separate instances of exim on different IP addresses and with separate configuration and queues.
However, in either a combined or a split out instances configuration, the way you probably want to do this is by making the routers conditional rather than applying additional filters, so
# router for restricted domain - this domain can only send or be sent
# to itself
restricted_domain:
driver = accept
domains = restricted.doma.in
senders = *@restricted.doma.in
transport = local_restricted_delivery
# router for other domains
other_domains:
driver = accept
domains = doma1.in : doma2.in # but not restricted.doma.in
senders = ! *@restricted.doma.in
transport = local_normal_delivery
and use the same conditions on the general send-elsewhere router
Nigel.
--
[ Nigel Metheringham ------------------------------ nigel@??? ]
[ Ellipsis Intangible Technologies ]
