Best Self-Hosted Email Servers in 2026
Self-hostable mail servers and groupware solutions for running your own email infrastructure.
The top-rated pick is Mailcow with 12,990 GitHub stars.
1 self-hosted email servers — ranked by GitHub stars. Browse all
Why self-host?
Self-hosting puts you in control. You own your data, avoid vendor lock-in, and eliminate recurring subscription costs. For teams handling sensitive data or operating under strict compliance requirements, running your own infrastructure is often the only viable option.