The Blog

Insights on technology, internet services, and software — written by the team building it.

Self-Hosting

Getting Your Email Delivered: SPF, DKIM, DMARC, and a Safe Cutover

Sending mail is easy. Getting it into the inbox instead of spam is the real work. Here's what SPF, DKIM, and DMARC actually do, how to test your setup, and how to safely switch a live domain over.

K Kevo Mkali · 15 Aug 2026 · 4 min read

Self-Hosting

Self-Hosting Email, Step by Step: Postfix, Dovecot, and OpenDKIM

A complete, explained walkthrough of installing and configuring a mail server from a bare Ubuntu VPS — including the TLS-permissions gotcha that catches almost everyone the first time.

K Kevo Mkali · 15 Aug 2026 · 6 min read

Self-Hosting

Why (and How) to Self-Host Your Own Email Server

If you're already paying for a VPS, you might be paying twice for email you could host yourself. Here's what self-hosted mail actually involves, and what you'll need before starting.

K Kevo Mkali · 15 Aug 2026 · 5 min read