Download Mailroom

Windows 10 and 11, 64-bit. Local-first: the scan runs on your machine.

Download for Windows ↓

Windows 10 & 11 · 64-bit · ~29 MB · version 0.1.3 · free 14-day trial, no card

Windows will warn you. Here is exactly what you will see.

Mailroom is signed with our own certificate rather than one bought from a certificate authority, so Windows does not recognise it yet. You will see “Windows protected your PC”, and the permission prompt will list the publisher as unknown. To continue: click More info, then Run anyway.

That warning is about who signed the file, not about anything found inside it. We would rather tell you up front than have you meet it cold. A certificate Windows recognises is on our list.

If you would like to check the file is exactly what we published, its SHA-256 is cf3a8a10d55592da623e8f5b153f1421fb573c639079d86aa13f534912318b46 — in PowerShell, Get-FileHash mailroom_0.1.3_Win64.zip.

What you will be downloading

  • A Windows installer, around 29 MB. It is signed with our own certificate, not one bought from a certificate authority — so Windows will warn you the first time you run it and show the publisher as unknown. That is expected; the FAQ explains exactly what you will see and why.
  • No account, no email address, no licence key to type. The trial starts by itself once your first Yahoo account is validated inside the app.
  • The scan reads the envelope — sender, size, date, and attachment names, types and sizes. Never the message body, never the file contents.

Which mailboxes work today

Yahoo Mail. That is the whole list for now — we would rather support one provider properly than four of them badly.

Mailroom is independent and not affiliated with Yahoo. Yahoo and Yahoo Mail are trademarks of their respective owner.