I started to suspect that both my Apple TV and Homepod Mini were being naughty children making DNS queries to servers other than my local one.
So put together a list of the bigger public IPv4 and IPv6 DNS servers, then added a firewall rule rejecting all traffic to them from all devices other than my AdGuard Home server.
And guess what I found - I was right. Unauthorised communication with Cloudflare, and avoiding my AdGuard Home server.
If @spamhaus incorrectly marks a mail server as a spammer, then the process is clear.
But what do you do if the mail server is incorrectly marked as an "open resolver" and you therefore cannot query DNSBLs? 😂
😶🌫️
I just had this case with a customer.
❌ The short answer is no — our datasets are free only for low-volume, non-commercial use. Not sure if that’s you? Check our Fair Use Policy:
👉 https://www.spamhaus.org/blocklists/dnsbl-fair-use-policy/
If you need data for commercial use, IP and domain reputation data is made available at an enterprise-level via Spamhaus Technology (free and paid for accounts available).
We've updated our DNS blocklists!
https://www.theprivacyproject.net for more info!!
📣 TODAY we will start to restrict access to KT (Korea Telecom) IP addresses querying our DNSBLs. To stay protected by the data, register for Spamhaus Technology's FREE Data Query Service. It takes minutes to change the config - register here:
👉 https://www.spamhaus.com/free-trial/sign-up-for-a-free-data-query-service-account/
#lazymastodon #ipv6 #DNSBL question:
I'm having spam trouble again. What's the theory (or just the practice) behind DNSBL for IPv6 addresses? The cheapest VPSes get 48 to 64 bit subnets; blocking individual addresses can't be the solution, but neither can be blocking a complete /64 residential or mobile access network when a single address in there misbehaves.
📣 Korea Telecom users | From September 17th, we will begin restricting access to the free DNSBLs for those querying via KT’s infrastructure. To stay protected, sign up to access the data via Spamhaus Technology’s free Data Query Service.
Learn more here👇
https://www.spamhaus.org/resource-hub/email-security/query-the-legacy-dnsbls-via-korea-telecom
Sign-up here for Spamhaus Tech’s free DQS, to ensure there are no issues with your email filtering ⤵️
https://www.spamhaus.com/free-trial/sign-up-for-a-free-data-query-service-account/
If you're using #SpamAssassin, now is a good time to stop relying on Validity's Realtime DNS Block Lists ("Validity Zone File Access"). Free-tier users are being threatened with severe usage limits unless they arrange a call with Validity's sales team. #DNSBL #email #BaitAndSwitch 📩 💔
❗ TODAY we will start to restrict access to Microsoft IP addresses querying our DNSBLs. Register for Spamhaus Technology's FREE Data Query Service to stay protected by the data - it takes minutes to change config.
Sign up here ➡️ https://www.spamhaus.com/free-trial/sign-up-for-a-free-data-query-service-account/
📣 FINAL REMINDER | From tomorrow we will start to restrict access to Microsoft IP addresses querying our DNSBLs. To stay protected by the data, register for Spamhaus Technology's FREE Data Query Service - changes to config take minutes.
Sign up here ➡️ https://www.spamhaus.com/free-trial/sign-up-for-a-free-data-query-service-account/
📣 Microsoft users | From April 9th, we will begin restricting access to the free DNSBLs for those querying via Microsoft’s infrastructure. To stay protected, sign up to access the data via Spamhaus Technology’s free Data Query Service.
Learn more here 👇
https://www.spamhaus.org/resource-hub/email-security/query-the-legacy-dnsbls-via-microsoft-move-to-spamhaus-technology-s-free-data-query-service/
📣 SERVICE UPDATE | From April 9th, access will start to be restricted to those querying the free DNSBLs via Microsoft’s infrastructure. Full info here👇
https://www.spamhaus.org/resource-hub/email-security/query-the-legacy-dnsbls-via-microsoft-move-to-spamhaus-technology-s-free-data-query-service/
Sign-up for Spamhaus Technology’s free Data Query Service, to ensure there are no issues with your email filtering:
https://www.spamhaus.com/free-trial/sign-up-for-a-free-data-query-service-account/
Auf der Suche für Ersatz für die ix.dnsbl.manitu.net Blacklist?
Da werden Sie (unter anderem) geholfen:
https://www.intra2net.com/de/support/antispam/index.php_sort=accuracy_order=desc.html
📣 TODAY we will start to restrict access to Hetzner IP addresses querying our DNSBLs. To stay protected by the data register for Spamhaus Technology's FREE Data Query Service here👇
https://www.spamhaus.com/free-trial/sign-up-for-a-free-data-query-service-account/
FINAL REMINDER | From tomorrow we will start to restrict access to Hetzner IP addresses querying our DNSBLs. To stay protected by the data register for Spamhaus Technology's FREE Data Query Service now - changes to config take minutes.
Sign up here 👇
https://www.spamhaus.com/free-trial/sign-up-for-a-free-data-query-service-account/
📣 Hetzner users | From February 19th, we will begin restricting access to the free DNSBLs for those querying via Hetzner’s infrastructure. To stay protected, sign up to continue accessing the data via Spamhaus Technology's free Data Query Service.
Learn more here ⤵️
https://www.spamhaus.org/resource-hub/email-security/query-the-legacy-dnsbls-via-hetzner/
