Tom Brown wrote:
>> Usually that's an indication that the BL has shut down or moved long
>> ago and has finally given up on getting people to respect it and remove
>> the config.
>>
>> Googling, I find a message from 2003 (!) indicating that
>> blackholes.wirehub.net had changed its name.
>>
>> <http://news.spamcop.net/pipermail/spamcop-help/2003-May/032553.html>
>>
>> I suspect you have been bombarding their nameserver to no avail for
>> roughly 5 years.
>>
>>
>>
>>
>
> quite possibly yes - although it was only yesterday when it broke,
>
dead DNSBLs wait for some time ("grace period") and if they still get a
lot of queries, they have no choice to get the admin's attention but
respond positively to every query.
> noted
>
>
It is recommended to keep an eye on all DNSBLs you use. you can write a
script to query the DNSBL daily/weekly:
127.0.0.1 should never be listed. if listed, then the DNSBL lists
the universe (or you have a DNS problem).
127.0.0.2 is generally listed. if not, the list may be dead (or you
have a DNS problem).
you can also try to lookup few IPs you know should not be listed (or you
don't want to use a DNSBL that lists them).
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