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Re: Mail Relaying.
> I have a question about mail-relaying. I have 2 different net connections
> and a couple of domains. I run zmailer on my main mailer which is connected
> to the faster network to the outside world.
> <--fast connect---[bla.org]---LAN---[foo.com]---slow net-->
> <---def.route machine1 ||||| machine2 def.route--->
> By now the mail to and from machine2 goes via the slownet outside to the
> world. (Simply a MX entry for foo.com that points to machine2).
> What would I have to add to machine1's zmailer config to act as a relay
> mail server for foo.com. I would suspect that I need to put a higher
> priority MX entry into the DNS and then add _some_ line to smtp-policy.src
> (i have spam protections on machine1) that would allow the relaying for
> How exactly is the syntax?? Im a bit confused by the different policy
> files that all get compiled together and become the .db file.
Ok, what a potpurri this will be...
At machine2 you can define a route entry with default to machine1:
That way all email traffic out from machine2 will be routed to machine1
for external routing.
As for INBOUND traffic, there you need to have MX entries:
foo.com. IN MX 1 bla.org ; to receive at machine1 from abroad
AND likely an explicite route at machine1 to direct foo.com mail to
For the smtp-policy information, I suggest you look into:
That file can be found linked from the "deeply technical" page..
> thanks a lot,
>Christoph J. M. a.k.a. CyBa on #schlonz / irc.servus.at | http://www.enemy.org
/Matti Aarnio <email@example.com> (who is carefull never to exceed 72
columns on signature width..)