Box for Outlook
Outlook add-in that saves email content and attachments to Box, inserts shared links, and manages shared file permissions.
Box.Price not published
Key&Box
by Key and BoxMicrosoft 365Price not published
Encrypts files, sets access permissions, and inserts secured links into Outlook email messages.
PRICINGNot published
DEPLOYMENTCloud
CATEGORYLegal & Compliance
UPDATED ON MARKETPLACE
What it does
Key and Box for Outlook lets users secure files from the compose window. Files can be encrypted, access settings selected, and a secured link inserted into a new or existing message. Secured shares can be tracked and managed from the task pane. Recipients access files according to the permissions set.
Key capabilities
from the Microsoft Marketplace listingFile encryption
Encrypts files before they are sent from Outlook.
Access controls
Sets permissions such as recipient-only access and optional restrictions.
Secured links
Inserts a secured link into an email message.
Share management
Tracks and manages secured shares from the task pane.
Use cases
- A sender can secure files while composing a new Outlook message.
- A sender can add secured files to an existing email message and send it with the usual Outlook workflow.
How it compares
Key&Box and Secure File Sharing Made Simple – Through SharePoint are both cloud-deployed, while the SharePoint listing is free and Key&Box has an unknown price type. Box for Outlook and RMail for Outlook are also cloud-deployed with unknown price types, matching Key&Box's listed pricing model. Secure File Sharing Made Simple – Through SharePoint was updated in Jun 2026, while Key&Box was updated on Sep 2025.
| Name | Pricing | Deployment | Updated |
|---|---|---|---|
| this plugin | Price not published | Cloud | |
| Secure File Sharing Made Simple – Through SharePoint | Not in catalog | ||
| Box for Outlook | Price not published | Cloud | |
| RMail for Outlook | Price not published | Cloud | |
In the catalog
132 plugins in Microsoft 365 · Legal & Compliance
Price distribution: 5 free, 9 freemium, 44 paid, 74 price not published
Pricing & deployment
Platform
Microsoft 365
Product
Microsoft 365
Deployment
Cloud
Pricing
Price not published
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EXCLAIMER LTDPaid
SendGuard for Outlook (Microsoft 365)
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What the vendor says
«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 …»