On Fri, 8 May 2020 at 16:09, Alexander Meinhardt <alexander.meinha...@gmail.com> wrote: > for inexplicable reasons i don't get any results from zen.spamhaus.org > anymore: > > Apr 08 16:20:29 [postfix/dnsblog] warning: dnsblog_query: lookup error > for DNS query x.x.x.x.zen.spamhaus.org: Host or domain name not found. > Name service error for name=x.x.x.x.zen.spamhaus.org type=A: Host not > found, try again > > I knew the free-to-use requirements from Spamhaus and i didn't think > that i ever would reach this regulations. (non-commercial, less than > 100.000 smtp/day, less 300.000 queries/day) > > As local DNS resolver i am using unbound which interacts with Spamhaus. > For a fallback solution, whenever unbound isn't accessible for > whatever reason, i added my provider (Hetzner) nameservers as well. > > nameserver ::1 > nameserver 127.0.0.1 > nameserver 213.133.99.99 > nameserver 213.133.100.100 > nameserver 213.133.98.98 > nameserver 2a01:4f8:0:a111::add:9898 > nameserver 2a01:4f8:0:a102::add:9999 > nameserver 2a01:4f8:0:a0a1::add:1010 > > Since a month i am getting no such results from Spamhaus anymore, so i > stopped using them via Postfix. > > My setup contains approx 10 email addresses which receive approx 30-40 > emails/day. > > Can i do something to revert this blocking from Spamhaus? > Like not quering for x days the list or so? > Any other solutions?
A possible cause is that you are not using your own DNS resolver but instead relying on a third party (such as your ISP), and their resolver has been blocked by Spamhaus for over-usage. In which case you need to set up your own DNS resolver (e.g. bind) and use this instead, ensuring it does not forward DNS queries through a third-party resolver.
