Posthaste
Your mail, delivered at Posthaste
Posthaste is a fast & smart local email workstation. Posthaste adapts to your workflow, whenever you want smart command palette, custom scripting, MCP server, themes, integrations with your personal tools, and other things.
Install
Download a build for your platform from the releases page or posthaste.theor.net:
- macOS — signed and notarized
.dmg. - Windows — NSIS
.exeinstaller. - Linux —
.AppImage;
Nightly and stable ship as separate apps.
Build from source
Posthaste is a Rust workspace (backend: a domain service over a SQLite
store with JMAP/IMAP providers) plus a TypeScript/Tauri frontend. See
Cargo.toml, package.json,
and flake.nix at the repo root for the toolchain, and justfile for the
common dev commands (just lists them).
Docs
Full documentation lives at posthaste.theor.net/docs.
Contributing
Posthaste is open source and takes issues and PRs on GitHub. Join the Discord to discuss features or get help.
License
MIT — see LICENSE.
