🔐 Security first
FIPS-aligned crypto, no SHA-1. PBKDF2-SHA256 passwords, TOTP, and passkeys gated behind your password.
Your entire mail platform.
One beautiful app.
A complete, self-hosted email server — SMTP, IMAP4rev2, POP3 and a modern JMAP API — with a beautiful webmail, calendars, contacts, notes & reminders, a powerful control center, DKIM/SPF/DMARC, passkeys and TOTP.
📬 Every protocol
SMTP (with STARTTLS & DKIM), IMAP4rev2, POP3, Exchange ActiveSync-Like, and a full JMAP API.
⚡ JMAP, done right
A standards-compliant JMAP Core & Mail (RFC 8620/8621) endpoint with batched method calls, result references, blob upload/download, the Quota extension (RFC 9425) and real-time push over EventSource & WebSocket (RFC 8887) — tuned for high throughput and concurrency.
📅 More than mail
Calendars, contacts, notes and recurring reminders — with multi-calendar Exchange ActiveSync-Like sync to your devices.
🛡️ Inbound authentication
SPF, DKIM, DMARC and forward-confirmed reverse DNS verified on every inbound message, with per-user spam & blocked-sender rules.
📱 Installable PWA
The webmail installs like a native app, works offline-aware, and adapts to any screen — in English, German and Serbian.
🌍 Cross-platform
Runs on Windows Server 2022+, Linux and macOS — and sits happily behind any reverse proxy.
⚙️ Full control
Manage domains, users, quotas, rate limits and DKIM keys from a responsive web control center.