LockDoc
Outlook add-in that encrypts files in your browser and shares them via secure links with end-to-end encryption.
LockDocPrice not published
XQ Secure Email
by XQ MessageMicrosoft 365Price not published
Encrypts and tracks Outlook emails and attachments, with expiration and sender-controlled revocation.
PRICINGNot published
DEPLOYMENTCloud
CATEGORYSecurity
UPDATED ON MARKETPLACE
What it does
Encrypts Outlook emails and attached files locally on the device. XQ tracks messages and files in a personal dashboard, including who read them, when they were read, and where they were opened. Messages expire after 3 days by default and access can be revoked by the sender. The add-in also supports authenticated team members and communication inside or outside an enterprise.
Key capabilities
from the Microsoft Marketplace listingEmail encryption
Encrypts Outlook messages and attached files before sending.
Message tracking
Tracks who read messages and files, when they were read, and where they were opened.
Message expiration
Messages expire after 3 days by default and can no longer be decrypted.
Email revocation
Lets senders revoke access to encrypted emails.
Trusted teams
Allows users to invite members who become authenticated partners after accepting.
Dashboard monitoring
Displays tracked XQ emails and files in a personal dashboard.
External communication
Protects communications sent inside or outside an enterprise.
Use cases
- Send encrypted files as Outlook attachments while encrypting the data locally on the device.
- Monitor recipient access to emails and files through the personal XQ dashboard.
- Share protected communications with recipients outside the organization and revoke access when needed.
How it compares
XQ Secure Email and LockDoc both use cloud deployment and list an unknown pricing model. XQ Secure Email was updated on Jul 2026, while LockDoc was updated in Nov 2025. IRONSCALES uses cloud deployment with paid pricing and was updated in Dec 2025, while Inbox Zero uses cloud deployment with free pricing and was updated in Apr 2026.
| Name | Pricing | Deployment | Updated |
|---|---|---|---|
| this plugin | Price not published | Cloud | |
| LockDoc | Price not published | Cloud | |
| IRONSCALES | Not in catalog | ||
| Inbox Zero | Free | Cloud | |
In the catalog
217 plugins in Outlook · Security
Price distribution: 7 free, 4 freemium, 51 paid, 155 price not published
Pricing & deployment
Platform
Microsoft 365
Product
Outlook
Deployment
Cloud
Pricing
Price not published
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What the vendor says
«Universal message encryption anywhere you work. Encrypt and track your emails and files wherever they are opened in the XQ Workspace using XQ's zero-trust data protection platform. XQ is free to install and use so there is no risk to giving it a try. ENCRYPTED FILES Send and receive encrypted files which are sent as …»