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chasquid

Simple, easy-to-configure SMTP server

Mail Servers ★ 977 stars Medium setup Apache-2.0

chasquid is an SMTP server written in Go with a focus on being easy to configure and maintain for small personal mail servers. It handles message submission and delivery securely.

Official siteSource code

Key features

  • Easy-to-configure SMTP server
  • Automatic TLS via certificates
  • SPF and DKIM support
  • Lightweight Go implementation

Pros & cons

Strengths

  • Released under the Apache-2.0 license
  • First-class Docker support for quick deployment
  • Written in Go
  • Tiny footprint — runs in 128 MB RAM

Trade-offs

  • SMTP only, needs IMAP separately
  • Small personal-use focus

Is chasquid secure?

OSV.dev has no published security advisories for chasquid's repository. No known vulnerabilities is not proof of security: it means none have been publicly catalogued.

Source: OSV.dev, checked 2026-10-14. How this is measured.

chasquid replaces

Self-hosted Google Workspace alternatives

Health badge

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SelfHostIndex: 78 · good

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