This blog post tries to provide a concise glossary of different technologies in modern email, and the associated DNS records and URLs needed to make them go.

I tried a bunch of different clients during the years. I went through Sparrow before it was bought and killed by Google, I tried AirMail, Polymail, Unibox and Spark. To be honest with you, I wasn’t happy with any of those clients. Don’t get me wrong, they were ok and did the job but I’m a weird person and I like simplicity. Sometimes I want a tool that does one thing and nothing more. Smart inbox is nice, filters are great but I don’t want to use them. I want to get my emails, read them, reply to them and archive them. And that’s it.

How to setup DNS records to ensure that domains that do not send email cannot be used for spoofing.