Tagged “Email”

DKIM Deep Dive

DKIM (DomainKeys Identified Mail) is another type of email deliverability record that helps recipient servers be confident that you authorized any given email. DKIM uses public-key-cryptography to mathematically sign important parts of your messages. This post is a deep dive into how it works and what it's good for.

SPF: Sunscreen for your Email

Sender Policy Framework (SPF) is a type of email deliverability record that helps servers that receive email verify that the sender is allowed to send. It's been around for a few years and has been taken up by every large email provider. This post is a deep dive into how it works and what it's good for.

Email: The Good Parts

Everybody knows what email is. You click "Compose", fill in the recipient's email address, write your message, maybe give it a pithy subject, and hit "Send". Some time later your recipient opens their email and reads your message. Simple, right?

There are an awful lot of interesting things happening between "Send" and "Some time later". This post is an overview of what happens when you hit "send", and how your message makes its way to your recipient.

How I run my own DNS servers

For the longest time I used zoneedit as my DNS provider of choice. All of my important domains were hosted there, they never really did me wrong. A few months back I decided that I wanted to learn how DNS actually works in the real world, though. Like, what does it actually take to run my own DNS servers?