chasquid – SMTP (email) server with a focus on simplicity

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.

Features include:

  • Easy:
    • 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.
  • Useful:
    • 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).
  • Secure:
    • Tracking of per-domain TLS support, prevents connection downgrading.
    • Multiple TLS certificates.
    • Easy integration with Let’s Encrypt.
    • SPF and MTA-STS checking.

Website: blitiri.com.ar/p/chasquid
Support: Guide, GitHub Code Repository, GitLab Code Repository
Developer: Alberto Bertogli
License: Apache License, Version 2.0

chasquid is written in Go. Learn Go with our recommended free books and free tutorials.

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