Author: Peter Bowyer Date: To: Exim Mailing List Subject: Re: [exim] dnsbls
On 14/03/2008, Dean Brooks <dean@???> wrote: > If you want your ISP to delegate reverse DNS to another DNS server out
> of their control, you're going to find it very difficult to get them
> to do it. The only time typically an ISP will be willing to do it is
> if you are on a T1, T3 or other high-end dedicated circuit, or if you
> are on business-grade DSL service where they have assigned you a /28
> subnet or higher.
>
> If the latter is what you are trying to do, ask them to "delegate reverse
> DNS for 1.2.3.4/28 to ns1.example.com and ns2.example.com". The key
> word to use here is "delegate reverse DNS", as opposed to the generic
> term of "point reverse DNS", which could be taken as either method.
Better mention RFC 2317 as well, and make sure you know how to do your
part of the classless delegation trick.
