Windows Desktop App

Email

A modern desktop email client. Local-first. Yours.

Multi-account IMAP/SMTP with conversation threading, full-text search, attachments, rules, signatures, and a three-pane reader. Your messages live in a local SQLite store on your machine — no cloud relay, no analytics, no account required to use the app itself. Built natively with Tauri and Rust for a small footprint and fast startup.

Download for Windows Beta · v0.2.0

Also available as MSI installer for corporate deployment. Source on GitHub (private — request access).

Features

Multi-Account IMAP/SMTP

Add as many accounts as you want — Gmail, Fastmail, iCloud, your self-hosted server. TLS / STARTTLS / plain. App passwords stored in Windows Credential Manager.

FTS5 Full-Text Search

Search across subject, sender, snippet, and body in milliseconds. Backed by SQLite FTS5 — every synced message is indexed locally and matched without a network round-trip.

Conversation Threading

Replies are linked by Message-ID and References, with subject normalization as a fallback. Sibling messages appear above the body so you can jump through a thread without scrolling the inbox.

Attachments

Attach files via the OS picker; received attachments under 5 MB are cached locally and open in your default app with one click. Larger ones stay metadata-only — re-fetch on demand.

Rules & Filters

Create per-account rules with conditions (from / subject / body contains) and actions (mark read, flag, delete, move to Archive / Junk / Trash / Sent). They run on every newly synced message.

Flag, Read, Move

One-click star toggle, auto-mark-as-read after dwell, right-click for the full set: Reply / Reply All / Forward / Move to Archive / Junk / Trash. All actions sync to the server via IMAP STORE / UID MOVE.

Privacy by Default

External images in HTML messages are stripped on first view — opt in per message with "Show images". HTML bodies render in a sandboxed iframe so trackers and scripts can't phone home.

Drafts Auto-Save

Compose autosaves your draft locally as you type. Close the window or quit the app — your message is right there next time you click New.

Background Sync

Quiet refresh every 5 minutes pulls new mail and notifies you with a desktop notification. Manual Sync All on demand. Per-account sync window — last 30 / 90 / 180 / 365 days or All time.

Built Right

Native bytes where it matters, web tech where it makes the UI quick to iterate on.

Tauri 2 + Rust

~5 MB installer (vs 150 MB for an Electron equivalent)
Native window chrome and OS integration
Sync engine in Rust: async-imap, lettre, mail-parser
Tokio async runtime for parallel folder sync
Windows Credential Manager via the keyring crate

Local Storage

SQLite (rusqlite, bundled, with FTS5)
WAL journal mode for concurrent reads during sync
Schema migrations run automatically on app start
Attachments saved next to the DB, capped at 5 MB each
Stored at %APPDATA%\com.overclockedapps.emailapp\

System Requirements

Windows 10 or later (x64)

WebView2 runtime is bundled with the installer. Requires ~50 MB of disk plus your cached message store.

An IMAP / SMTP account

Most providers work out of the box. Gmail and iCloud need an app password (we don't speak OAuth yet — on the roadmap).

No backend, no cloud, no account

The app talks directly to your mail server. No analytics, no telemetry, no central service in the middle. Update checks (when enabled) ping overclockedapps.com only.

OverclockedApps