Mox
Complete, modern self-hosted email server with JMAP, DANE, and built-in junk filtering
Overview
Mox is a full-featured, modern email server written in Go that bundles IMAP4, SMTP, JMAP, SPF, DKIM, DMARC, MTA-STS, DANE, and DNSSEC support in a single binary. It includes reputation-based and content-based junk filtering, automatic TLS via ACME/Let's Encrypt, internationalized email (IDNA), and a built-in webmail client. The project targets security and standards compliance and is suitable for personal or small-organization deployments.
Where it falls short of Gmail / Google Workspace
- No Docker image provided officially; manual binary deployment only
- Not designed for high-volume transactional or bulk email sending
- Admin UI and webmail are functional but lack polish compared to hosted solutions
- Relatively young project; some edge-case RFC compliance gaps may exist
We list the gaps honestly so you can decide if the trade-off is worth owning your data.
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