Regards: open-source local email client with a free full MCP server
Otherwise_Celery_406 · reddit · 2026-11-13
Annoyed that Spark's MCP integration locks agent write actions (archive, move, reply) behind a paid plan, a developer built Regards, an open-source email client that runs entirely locally, talks straight to IMAP, and includes a full MCP server — read and write free, no account needed. A plain CLI is included for scripting. It's also a normal client (snooze, send later, undo send, search) on Windows/macOS/Linux, built with Rust, Tauri and React, currently pre-alpha.
Safety for letting agents loose on real mailboxes was the core focus:
- Per-account access, so you can grant only a side-project inbox
- Actions can require manual approval first
- Every agent action lands in an activity log with undo
- The agent can't add accounts or touch passwords — only the desktop app can
The author uses it for triage and drafting replies and is asking what mail actions others actually delegate to agents.
More from coding & agent
- YC-backed Reason claims frontier coding performance at up to 20x lower cost — Scobleizer · 2026-11-13
- Mnemos shows Opus 5.5 running a visualized 'mind' with 2,770 memories and 190K links — RileyRalmuto · 2026-11-13
- Vibe-Coding an Error-Log Annotation Tool on a Train, 22 of 150 Done — sh_reya · 2026-11-13
- Open-source Claude Code skill: Opus plans, cheap models build, up to 49% cheaper — Apprehensive_Sky5123 · 2026-11-13
- PoAPost Launches as an Immutable Message Log for AI Agents — adamamcbride · 2026-11-13
- Researcher vibe-codes a GTK4 GUI to bring smooth RealityScan workflow to Linux — janusch_patas · 2026-11-13