https://store-images.s-microsoft.com/image/apps.2214.b74765c6-6074-4f29-aaae-11204d7f2f65.85e322b3-97c9-40ba-a448-7d44ee3131d6.eb9aae05-2282-405c-95cc-b9b566a339da.png

Key&Box

by Key and Box

(2 ratings)

Key&Box lets you send and request secure, encrypted files directly from Microsoft Outlook

About Key and Box for Outlook

Key and Box for Outlook enables secure file sharing without leaving your inbox. Encrypt files, apply access controls, and deliver sensitive content confidently—right from the compose window.

Key benefits

  • Secure by design: Encrypt files before sending and control access with permissions.
  • Seamless workflow: Share securely within Outlook—no context switching.
  • Compliance-friendly: Support your data protection policies with controlled sharing.
  • Simple for users: A clear, guided flow that works the way you email.

What you can do

  • Send secure files directly from a new or existing message.
  • Set access controls (e.g., recipient-only access) and optional restrictions.
  • Track and manage secured shares from the task pane.

How it works

  1. Open the compose window in Outlook and launch the Key and Box add-in.
  2. Select files to secure, choose access settings, and insert the secured link.
  3. Send your email as usual; recipients access according to the permissions you set.

Requirements

  • Outlook on the web, new Outlook for Windows, or Outlook for Mac.
  • Microsoft 365 or Exchange account with add-ins enabled by your admin.

Licensing

Key and Box requires a license. All new users receive a 14-day full trial, after which the service is £12 per month. For full details, see the licensing page.

Support

Need help? Contact support@keyandbox.com. We aim to respond within 1–2 business days.

App capabilities

When this app is used, it
  • Can send data over the Internet
  • This app can access and modify personal information in the active message, such as the body, subject, sender, recipients, and attachment information. It may send this data to a third-party service. Other items in your mailbox can’t be read or modified.

At a glance

https://store-images.s-microsoft.com/image/apps.32198.b74765c6-6074-4f29-aaae-11204d7f2f65.85e322b3-97c9-40ba-a448-7d44ee3131d6.5a2423c0-f530-4b82-921f-9abd38ba23ed.png
https://store-images.s-microsoft.com/image/apps.41439.b74765c6-6074-4f29-aaae-11204d7f2f65.85e322b3-97c9-40ba-a448-7d44ee3131d6.e74b20e9-76e7-4b56-a7b4-d694bf93cc5b.png
https://store-images.s-microsoft.com/image/apps.42594.b74765c6-6074-4f29-aaae-11204d7f2f65.85e322b3-97c9-40ba-a448-7d44ee3131d6.5718b1ab-d69b-494d-9a70-bed0955ab245.png