eBook | Getting the most from email filtering
(Data Query Service)
(Data Query Service)
(DNS Firewall)
(DNS Firewall)
(IP & Domain Intelligence)
(IP & Domain Intelligence)
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All our DNS blocklist best practices wrapped into this eBook with a refresher on the source code of malicious emails and some DNSBL myth busting. Get it all in here.
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Help and recommended content
See below for helpful articles and recommended content
Querying the free DNSBLs via Oracle? Move to Spamhaus Technology’s free Data Query Service
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 15th, 2026!
Query the legacy DNSBLs via Korea Telecom? Move to Spamhaus Technology’s free Data Query Service
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!
Query the legacy DNSBLs via Microsoft? Move to Spamhaus Technology’s free Data Query Service
If you’re using the free legacy DNS Blocklists (DNSBLs) through the Public Mirrors while running on Microsoft’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 April 9, 2025!
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Threat Intel Community
Free Datasets and Tools
Resources
Reputation Data
About Us
Threat Intel Community
Free Datasets and Tools
Resources
Reputation Data
About Us
Threat Intel Community
Free Datasets and Tools
Resources
Reputation Data
About Us
Threat Intel Community
Free Datasets and Tools
*** This is a Security Bloggers Network syndicated blog from The Spamhaus Project authored by The Spamhaus Team. Read the original post at: https://www.spamhaus.org/resource-hub/email-security/ebook-getting-the-most-from-email-filtering

