On 11/06/2011 16:00, Nigel Metheringham wrote:
On 11 Jun 2011, at 10:18, [email protected] 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 ------------------------------ [email protected] ]
[ Ellipsis Intangible Technologies ]
Sounds like a requirement to split "inside" from "outside".
We run public instances of exim called relay1... relay2... relay3 that
are all configured via a common (replicated) mysql database for the
external view. This allows us to do common stuff for several tens of
domains. Relays have a "next hop" (forward to) config item that causes
email to be forwarded to the internal host that implements teh local
email service.
Mike
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