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 ?
> You really REALLY want _only_ the following:
>
> foo.org. IN MX 10 mail.isp.com.
> bar.net. IN MX 10 mail.isp.com.
> isp.com. IN MX 10 mail.isp.com.
> mail.isp.com. IN MX 10 mail.isp.com.
> mail.isp.com. IN A 123.1.2.3
> 3.2.1.123.in-addr.arpa. IN PTR mail.isp.com.
>
> That's it. Nothing more, nothing less. Any attempt to define A RRs for
indeed. very much agreed. and double that.
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