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Email

Stalwart Mail

All-in-one mail server with IMAP, JMAP, SMTP, CalDAV, and CardDAV

312 installs AGPL-3.0 license ★ Popular
Add to my workspace → Visit project → Free to install · pay only for plan resources

About

Modern, high-performance mail server written in Rust. Supports every protocol you need: IMAP, JMAP, SMTP, CalDAV, CardDAV, and WebDAV. Built-in spam filter and web admin.

Key features

  • All protocols: IMAP, JMAP, SMTP, CalDAV, CardDAV, WebDAV
  • Built-in spam filter (sieve scripting)
  • Web-based admin panel
  • Single Rust binary, low resource usage
  • Full-text search
  • DKIM, SPF, DMARC support

What you get

  • ✓ Dedicated RocksDB database pod (not shared)
  • ✓ Automatic TLS certificate (stalwart-mail.your-workspace.sme2.openova.io)
  • ✓ Daily backups with 30-day retention
  • ✓ Uptime monitoring with instant alerts
  • ✓ Isolated tenant (vCluster) — your data stays yours
  • ✓ One-click upgrades and rollbacks