Mailcow

Mailcow is a comprehensive mail server suite designed for efficient and secure email hosting. It simplifies email management with an intuitive web interface and offers features like multi-domain support, user and alias management, and calendar integration. Security is a priority, with built-in spam filtering, antivirus protection, and encryption.

Key Features

• DKIM and ARC support/generation.
• Black and white lists per domain and per user.
• Spam score management per user (reject spam, flag spam, greylist).
• Allow mailbox users to create temporary spam aliases
• Prepend email tags to subject or move emails to subfolders (per user)
• Allow mailbox users to toggle TLS enforcement for inbound and outbound messages
• Users can reset caches on SOGo ActiveSync devices
• imapsync to periodically migrate or retrieve remote mailboxes
• TFA: Yubikey OTP and WebAuthn USB (Google Chrome and derivatives only), TOTP
• Add whitelist hosts to forward mail to mailcow
• Fail2ban-like integration
• Quarantine system
• Anti-virus scanning including macro scanning in Office documents
• Integrated basic monitoring