If you're using the free DNS Blocklists (DNSBLs) through the Public Mirrors while running on Oracle’s network, 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 April 8th, 2026! The post Querying the free DNSBLs via Oracle? Move to Spamhaus Technology’s free Data Query Service appeared first on Security Boulevard.