chasquid is an SMTP (email) server with a focus on simplicity, security, and ease of operation. It is designed mainly for individuals and small groups.
It sends and receives email as a typical MTA (for example, can be used instead of Postfix or Exim), and it is designed mainly for individuals and small groups.
chasquid is free and open source software.
- Easy to configure.
- Hard to mis-configure in ways that are harmful or insecure (e.g. no open relay, or clear-text authentication).
- Monitoring HTTP server, with exported variables and tracing to help debugging.
- Integrated with Debian, Ubuntu, and Arch.
- Supports using Dovecot for authentication.
- Multiple/virtual domains, with per-domain users and aliases.
- Suffix dropping (user+something@domain → user@domain).
- Hooks for integration with greylisting, anti-virus, anti-spam, and DKIM/DMARC.
- International usernames (SMTPUTF8) and domain names (IDNA).
- Tracking of per-domain TLS support, prevents connection downgrading.
- Multiple TLS certificates.
- Easy integration with Let’s Encrypt.
- SPF and MTA-STS checking.
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