Open DerDakon opened 4 years ago
My personal mailserver users Spamhaus DNSBL (and BIND for local requests in order not to hit the usage limits). However, Spamhaus blocks DNS requests from Hetzner customers (experience as co-operator mail2.fossgis.de).
But you are right, hand-crafted lists cannot be the only solution. I will have a look at the Manitu list.
That's not true anymore, my mailserver is also in the Hetzner range and it works for me. It is true that they have blocked it in the past.
https://github.com/OpenRailwayMap/server-admin/blob/2dc65f8a9f8bbe37bb73bb7d164ef9ded520a9dc/ansible/roles/mail/tasks/files/postscreen_access.cidr#L3
Doing it that way will be a never ending story. Try this: https://docs.iredmail.org/enable.dnsbl.html
The example blacklists are a good start. I also use http://www.dnsbl.manitu.net/?language=de