Every message. Instantly.

A desktop mail client that doesn’t make you wait.

Native C++ and Qt6 — no browser engine, no Electron. Your mail lives in an encrypted database on your own machine, so search is instant and everything works offline. Gmail, Outlook, iCloud, Yahoo and any IMAP account, together in one fast app.

Get your beta key Download

Already testing and lost your key? Get a replacement — enter the same address and you get a fresh key and a new download link straight away.

Halyard Mail running on Windows

Actually native

Written in C++ against Qt6 and compiled to a single Windows binary. Not a web page in a costume — it starts fast, scrolls fast, and stays out of your way.

All your accounts

Gmail, Outlook and Hotmail, iCloud, Yahoo, AOL, Fastmail, GMX and anything else that speaks IMAP. Server settings for 22 common domains fill themselves in.

Yours, and offline

Mail is stored locally in an encrypted SQLCipher database. Search hits your own disk rather than someone’s API, and nothing stops working when the network does.

Getting started

  1. Get a beta key — about ten seconds. Lost the one you had? Same form, same address.
  2. Download and install.
  3. Add your email account — read this one first if you use Gmail.
  4. Work through the testing guide and tell us what broke.
Your key expires 15 days after it is issued. That keeps beta builds from quietly living forever on machines nobody is tracking. When it lapses, come back and register again — the expiry date is sealed inside the key and shown to you when it is issued.

Where your attention is worth the most

Anything you find is worth telling us about. But if you only have time to exercise a few things, these are where a fresh pair of eyes is genuinely more valuable than ours:

Before you install

Two things will look alarming, and both are expected: