Unfortunately no. The ISP must delegate control of their rDNS zone to
your nameservers before you can do anything.
Without their ISP's cooperation, the most you can do is create entries
in your zone files for your servers to use. No other servers on the
internet will ask your nameservers for those entries, however.
-- Sam Clippinger
Sergio Minini {NETKEY} wrote:
> Hey list,
> I am wondering this basic question:
> I have a customer for whom I provide DNS but their mailserver is
> hosted by another ISP.
> Is there anything I could do with my DNS zone file to provide them a
> rDNS or its just up to the ISP, since they "own" their mailserver's IP?
> Thanks!
> \Sergio
>
> /
> ------------------------------------------------------------------------
> /
> /Excerpt from zone file:/
> //
> /MX 10 mail.domain.com.ar. ; Primary Mail Exchanger
> MX 20 home.domain.com.ar.
> MX 90 mail2.domain.com.ar./
> //
> /;
> mail IN A 200.11.29.52
> domain.com.ar. IN A 20.80.15.3
> home IN A 200.11.29.53
> mail2 IN A 20.80.15.3
> www IN A 20.80.15.3
> ftp IN A 20.80.15.3
> /
>
> /; domain SPF
> ;domain.com.ar. IN TXT "v=spf1 ip4:200.11.29.52 -all"
> ------------------------------------------------------------------------
> /
>
> ------------------------------------------------------------------------
>
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>
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