If you're using the free legacy DNS Blocklists (DNSBLs) through the Public Mirrors while running on Korea Telecom’s infrastructure, you'll need to make a few small adjustments to your email setup. These changes are simple to apply, but if you don’t take action, you risk having some - or even all - of your email blocked after September 17th, 2025!

The post Query the legacy DNSBLs via Korea Telecom? Move to Spamhaus Technology’s free Data Query Service appeared first on Security Boulevard.

The Spamhaus Team

Source: Security Boulevard
Source Link: https://securityboulevard.com/2025/08/query-the-legacy-dnsbls-via-korea-telecom-move-to-spamhaus-technologys-free-data-query-service/?utm_source=rss&utm_medium=rss&utm_campaign=query-the-legacy-dnsbls-via-korea-telecom-move-to-spamhaus-technologys-free-data-query-service