On 3/4/2022 11:58 AM, Gerben Wierda wrote:
Feb 27 06:02:19 mail postfix/dnsblog[46930]: addr 113.197.35.193 listed by domain zen.spamhaus.org <http://zen.spamhaus.org> as *127.255.255.254*
This query was made on 27 Feb via a public DNS nameserver that is blocked by spamhaus.
Mar 04 18:44:25 mail postfix/dnsblog[88230]: addr 189.51.96.252 listed by domain zen.spamhaus.org <http://zen.spamhaus.org> as *127.0.0.4*
This query on 04 Mar was made via a different DNS nameserver that was not blocked by spamhaus.
If you're using a public DNS service, it's possible some of their back-end servers are blocked and some aren't, which will give you unpredictable results.
To fix, insure you either use a local DNS nameserver installed on your computer, such as unbound, or sign up for the free (for low volume) Spamhaus Data Query Service
-- Noel Jones
