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Lieer

Sync Gmail with a local notmuch mail database

Mail Servers ★ 655 stars Medium setup GPL-3.0

Lieer synchronizes a Gmail account with a local Maildir managed by the notmuch tagging system, letting users keep a self-hosted offline copy of their mail with two-way label sync.

Official siteSource code

Key features

  • Two-way Gmail and notmuch sync
  • Offline local mail copy
  • Label synchronization

Strengths

  • Released under the GPL-3.0 license
  • Written in Python
  • Tiny footprint — runs in 128 MB RAM

Is Lieer secure?

OSV.dev has no published security advisories for Lieer'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.

Lieer replaces

Self-hosted Gmail web interface alternatives

Health badge

Maintain Lieer? Add its health score to your README. The badge links back to this page.

SelfHostIndex: 58 · fair

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The score is recomputed on every nightly rebuild from public repository data — see how it is calculated.

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