Re: [Exim] Exim4, where has the "bydns_mx" option gone ?

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Author: Dave C.
Date:  
To: Oliver Egginger
CC: Exim Users
Subject: Re: [Exim] Exim4, where has the "bydns_mx" option gone ?
<-- Warning: charset 'X-UNKNOWN' is not supported -->

On Wed, 3 Jul 2002, Oliver Egginger wrote:

> I wrote:
> >?But our smart host only exists as a MX record.
>
> You wrote:
> > Your smart host doesnt have a host name? It has to anyway, if its the
> > target of an MX record.
>
> Philip Hazel wrote:
> > Then it isn't, strictly speaking, a "smart host". I guess it's a "smart
> > domain".
>
> And thats what it is.


Note that PH had to 'guess' it was a smart domain, becuase there really
isnt any such concept (at least not one that really makes any sense)

An MX record has to point to some host.

For instance, if your 'smarthost MX record" looks like:

blah.com    IN    MX    10 server.foo.com



Then what you really have is a smarthost at server.foo.com - Its silly
to have to lookup the MX every time, when its the host thats providing
the smarthosting for you anyway. Instead of saying 'blah.com bydns_mx',
just use 'server.foo.com byname'


>
>
> Komplette Nachricht vom (complete message from) Dienstag, 2. Juli 2002 20:10:
> > On Tue, 2 Jul 2002, Oliver Egginger wrote:
> > > Hello,
> > >
> > > Ultimately, a minor problem, anyhow:
> > > we switchted from Exim 3 to 4.
> > > In Exim3 we use the "bydns_mx" option in our "smart_host" configuration.
> > > This option don't exists in Exim4.
> > > But our smart host only exists as a MX record.
> >
> > Your smart host doesnt have a host name? It has to anyway, if its the
> > target of an MX record.
> >
> > dig smarhistmxrecord mx
> >
> > and you will see the name of the host that is your smarthost..
> >
> > > Current this MX record mask two mailhubs.
> > > In our new Exim4 configuration I use the following route list (which acts
> > > as a makeshift): route_list =  *
> > > mailhub1.our_mailprovider.de:mailhub2.our_mailprovider.de  bydns But I
> > > would like to have something like this
> > >     route_list =  *   smarthost.our_mailprovider.de  bydns_mx
> > > How can I handle this in Exim4 ?
> > > I like the MX record solution, because if our provider chance something
> > > on his host configuration we don't have to pay attention to it.

> > >
> > > I don't have the controll over this DNS-Server, thus
> > > I don't can fix it by adding entries to it, see
> > > http://www.exim.org/mailman/htdig/exim-users/Week-of-Mon-20020225/035700.
> > >html
> > >
> > > I think I need a route list, therefore I have to use a manual router.
> > > Could you please give me a hint ?
> > >
> > > regards
> > > Oliver
> > >
> > >
> > >
> > >
> > >
> > > --
> > >
> > > ## List details at http://www.exim.org/mailman/listinfo/exim-users Exim
> > > details at http://www.exim.org/ ##
>
>