Am 30.09.2013 12:59, schrieb no@s...@mgedv.net:
>> normally you would have internal and external DNS views
>>
>> however, dnsmasq can use /etc/hosts and forward all other requests to a
>> specific DNS and so you would point /etc/resolv.conf to 127.0.0.1
> 
> i know it's possible to fake DNS records with "dummy" DNS services

it's not a fake

> want to keep the installation clean and easy. my question points more in
> this direction i think: what tells postfix to use the internal IP for x2.us,
> but
> not for all the other domains, which are setup in exactly the same ways
> in the resolver, /etc/hosts, DNS, postfix-config and the "internal" m$-MX

postfix asks the DNS server
maybe you can use the /etc/hosts hack

http://www.linuxquestions.org/questions/linux-software-2/force-postfix-to-refer-etc-hosts-857662/

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