On Tue, Jun 23, 2009 at 11:54:07AM -0500, /dev/rob0 wrote:
> On Tue June 23 2009 06:32:26 Ji???? Hlinka wrote:
> > Define secodnary MX record for the secondary MDA is one of a
> > posiibilities
> >
> > :-), but i still hope there is simpler solution, something like
> > : adding
> >
> > another IP (the IP of secondary MDA) on each line of transport_maps
> > :-).
> >
> > Im little bit afraid of MX record solution (although it is probably
> > the "cleanest" way), because im dont know how much i have to change
> > my postfix configuration.
>
> With proper MX records in your own DNS, you don't even need to maintain
> the transport_maps. The sloppy way is to use your MX lookup in the
> existing transport_maps :
>
> example.com smtp:example.com.your.domain
> example.net smtp:example.net.your.domain
>
> example.com.your.domain. MX 10 primary.mda.your.domain.
> example.com.your.domain. MX 20 secondary.mda.your.domain.
> example.net.your.domain. MX 10 primary.mda.your.domain.
> example.net.your.domain. MX 20 secondary.mda.your.domain.
>
> The clean way is to configure your resolver to look at your own DNS
> first, before external queries, then do away with transport_maps
> altogether:
>
> example.com. MX 10 primary.mda.your.domain.
> example.com. MX 20 secondary.mda.your.domain.
> example.net. MX 10 primary.mda.your.domain.
> example.net. MX 20 secondary.mda.your.domain.
With BIND at least, it is not possible to place out-of-scope records
in a zone file. One needs to claim the whole zone, which masks other
records in the entire tree below that domain.
This is not generally a good idea. I recommend using the "localhost"
zone (or the "invalid" zone) for custom MX records. As in the "your.domain"
example, but with "localhost" for "your.domain".
--
Viktor.
Disclaimer: off-list followups get on-list replies or get ignored.
Please do not ignore the "Reply-To" header.
To unsubscribe from the postfix-users list, visit
http://www.postfix.org/lists.html or click the link below:
<mailto:majord...@postfix.org?body=unsubscribe%20postfix-users>
If my response solves your problem, the best way to thank me is to not
send an "it worked, thanks" follow-up. If you must respond, please put
"It worked, thanks" in the "Subject" so I can delete these quickly.
