Showing posts with the label public dns
Hey, email nerds! Are you like me, running various random EC2 instances with scripts or applications that do a bunch of spam and email message analysis, checking (among other thi…
Remember how I warned that querying Spamhaus via public DNS resolvers wasn't a great idea? "Spamhaus clearly doesn't want to provide this IP reputation data via [pu…
You'll recall me warning recently that using Spamhaus data to protect your mail server is a bad idea if you're using open or public DNS resolvers . TL;DR? Spamhaus is wor…
Do you use any of the Spamhaus blocking lists (DNSBLs) to protect yourself from inbound spam and email threats? If so, you're not alone. The Spamhaus data is quite popular an…