MTA-STS (briefly) explained
A simple and brief explanation of what Mail Transfer Agent Strict Transport Security is and how it works.
Security
Why we disable TLS 1.0 & 1.1
Why we disable older versions of TLS on our servers, even if internet giants like Facebook and Google don’t.
Why you need a password manager
If you can remember all of your passwords then they aren’t unique, complicated or varied enough. Use a password manager and do something about it.