Re: [Exim] Re: Reverse Mappings

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Author: Exim Users Mailing List
Date:  
To: Tamas TEVESZ
CC: Exim Users Mailing List
Subject: Re: [Exim] Re: Reverse Mappings
[ On Wednesday, February 6, 2002 at 23:40:58 (+0100), Tamas TEVESZ wrote: ]
> Subject: Re: [Exim] Re: Reverse Mappings
>
> On Wed, 6 Feb 2002, Greg A. Woods wrote:
>
> > I.e. your example is missing the following critical PTRs:
> >
>  >     3.2.1.123.in-addr.arpa.    IN PTR    mail.bar.net.
>  >     3.2.1.123.in-addr.arpa.    IN PTR    mail.foo.org.

> >
> > (yes, you really "MUST" have multiple PTRs in such a scenario!)
>
> wouldn't that make the problem bigger by returning reverses in a
> round-robin fashin ?


Nope. PTRs are not returned round-robin. With BIND at least the first
PTR in the zone file is returned as the "official" hostname, and the
rest are returned as aliases (or at least that's the interpretation
given to the returned results by the traditional BSD resolver).

--
                                Greg A. Woods


+1 416 218-0098; <gwoods@???>; <g.a.woods@???>; <woods@???>
Planix, Inc. <woods@???>; VE3TCP; Secrets of the Weird <woods@???>