On 9/04/23 18:18, tom--- via Postfix-users wrote:
Secondly, and this is *very* important, make certain you are not using
your ISP's or another public DNS resolver (such as 8.8.8.8). You
*must* run your own DNS resolver for DNSRBLs to work properly.
I was exactly using google DNS. Do u mean Google will block queries for
RBL?
No, as someone else already mentioned, Spamhaus blocks queries from
public DNS servers such as Google DNS. Also Spamhaus limits the number
of queries that can be performed from a given DNS server so even if they
don't explicitly block it you are sharing that limit with everyone else
who uses that resolver and will not get reliable results that way.
Peter
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