Mailock® For Outlook
Secure your
Outlook emails
Email encryption add-in for Outlook
Encrypt sensitive messages and verify your recipients in Windows Outlook with the Mailock secure email add-in.
Secure Outlook
emails in a *click*
Mailock brings email encryption and authentication to your Outlook inbox. Compose messages as normal, click the toggle to secure, and choose how to verify your recipients.
- Send secure emails and replies
- Prevent sending to the wrong person
- Revoke access if there’s a breach
1. Send
Select the secure toggle in your Outlook ribbon to start a secure email.
3. Reply
Recipients can reply using Mailock in Outlook or on the web, keeping the conversation fully protected.
Security
Protect your
email exchanges
Secure emails and replies
Send encrypted emails and attachments with one click. Verify recipients to make sure only the right people can access your messages - even when they reply.
Prevention
Prevent mistakes
before they happen
Trigger sensitive data alerts
Catch risky emails with security alerts. If Mailock detects sensitive content, it’ll prompt you to send securely.
Compliance
Revoke you
can rely on
Lock emails sent in error
Unlike Outlook’s limited recall feature, Mailock’s message revoke works even after the email’s been opened - whether the recipient uses Outlook, Gmail, or any other provider.
Microsoft
Message Encryption
Mailock
Secure Email
Testimonial
Click the Mailock button and off you go!
The Mailock secure email toggle just sits there in Outlook - you click secured or unsecured, and off you go.
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Features
Key Features for Outlook
Compose
Send secure emails from Outlook. Just click the Mailock icon and set recipient authentication.
Encrypt
Deliver messages with end-to-end AES-256 encryption - protecting sensitive data in transit.
Prevent
Challenge
Choose from multi-factor authentication methods like SMS, Q&A, or Unipass ID to verify recipients.
Track
Revoke
Pricing
Mailock pricing plans
Compare free and paid plans to find the right level of protection for your business.
Mailock Pro
For professionals & teams
Get full access to secure email features, with controls built for regulated communication.
Use Cases
For financial advisers
See how Mailock helps advisers protect client data and meet compliance requirements.
Questions?
How to Send a Secure Email (Encryption Options, Passwords, & MFA)
Learn how to send a secure email using TLS, encrypted files, or end-to-end email tools like Mailock. Keep messages private and compliant.
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TLS Email Encryption, Explained
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