Transport Layer Security (TLS) is what gives you the little padlock in your browser bar. Some people still call it SSL, but TLS has been around for 18 years – it’s time to move on. TLS provides two things. One is encryption of traffic as it goes across the wire, the other is a cryptographic […]
If you’re sending email from any address beginning with a 65 – in 220.127.116.11/8 – it’s possible you’ll see some delivery problems. Something appears to be broken with dnssec signatures for the reverse DNS zone, leading queries for reverse DNS to fail for anyone using a dnssec aware DNS resolver (which is almost everyone).