This is a self-hosted email server written in Go, shipped as a single binary. It supports IMAP (with IDLE), SMTP, DKIM, SPF/DMARC, and CalDAV, with modern defaults and minimal configuration.
The goal is something you can run on a small VPS for personal or small-team use without vendor lock-in.
I’d really appreciate feedback on the architecture, security model, and what you’d want to see next.