RBL cache {Scanned by HJMS}

[Ugo Bellavance]

On Sat, 13 Sep 2003 15:30:40 +0100, Antony Stone
<Antony at SOFT-SOLUTIONS.CO.UK> wrote:

>On Saturday 13 September 2003 3:25 pm, Ugo Bellavance wrote:
>
>> Hi Antony.
>>
>> Your answer is appreciated, but I am not talking about DNS.
>
>I'm sorry, but I think you are - you just don't realise it.
>
>> It is based on the same principle, but with different data.  I do not want
>> to cache a name-to-IP adress mapping,
>
>I know that.
>
>> I want to cache the names or IP address of
>> servers that has been qualified as spam source in the last, say 4 hours.
>> Not to prevent DNS queries, but to prevent RBL queries.
>
>My point is that RBL queries *are* DNS queries.
>

I'm terribly sorry.  I effectively didn't realise that.  I looked at the
link you gave, and please tell me if I'm wrong.  To do a RBL query, we
simply do a reverse-lookup on the IP address, using a RBL server as DNS
server, instead of a conventionnal mail server, and if the result is part of
a particular zone, the server is identified as a spam source?

Thanks,