Secure Email Encryption

Open-source solution for your company

E2E

encryption

GDPR

compliance

Uses

PGP

SIGN

your emails

WKD

protocol

Get started
Private users
Mailvelope Email Encryption Interface

1000+ organizations and 300k+ users worldwide use Mailvelope,
including universities, IT companies, and more.

For Business
Integrates with Google Workspace, Microsoft 365, and Nextcloud.
For Private Users
A simple browser add-on safeguards your mails – in Gmail, Outlook, WEB.DE or any other webmailer of your choice.

Set up email encryption
For Email Providers
Partnering with Mailvelope allows for easy integration of encryption solutions in your web app.

The key to confidential communications

UI Experience Icon

Complete UI experience

Enjoy a seamless user experience with excellent integration into Gmail and Nextcloud interfaces.

Phishing Detection Icon

Phishing detection

Mailvelope helps protect you from phishing by identifying signature mismatches in emails.

GDPR Compliance Icon

GDPR compliance

Mailvelope adheres to GDPR, ensuring the privacy and security of your data.

Security Audits Icon

Security audits

Mailvelope provides proven security, as validated by audits and the open source community.

Key Management Icon

Key management

Manage secure corporate email communication with a single key for organization-wide encryption and decryption.

Attachments Encryption Icon

Attachments encryption

Securely send and receive files by encrypting and decrypting them directly within your email.

What features does Mailvelope add to Gmail?

Mailvelope Logo Gmail Logo
End-to-End Encryption (E2EE)
Only sender & recipient can read email content.
Yes
Full E2EE using PGP on client-side only.
No
Content readable by Google servers.
Provider Access to Email Content
Whether the email service can read/scan your message.
No access
Google sees only encrypted data.
Full access
Google can access and process content.
Encryption of Attachments
Protection for file attachments in the email.
Yes
Files encrypted with message, PGP/MIME supported.
No
Stored and scanned as readable content.
Encryption in Transit (TLS)
Use of Transport Layer Security to protect emails as they travel.
Yes
TLS for transport, PGP for full confidentiality.
Yes
Standard TLS used when recipient supports it.
Encryption at Rest
Encryption of stored emails on server/database.
Yes
Encrypted via PGP; inaccessible without user’s key.
Yes
Server-side encryption, Google holds keys.
Email Metadata Protection
Hiding or encrypting metadata (subject lines, headers, recipients).
Limited
Metadata remains visible to all servers.
None
Full metadata readable by Google and others.
Message Integrity & Authenticity
Ability to sign emails so recipients can verify sender identity and detect tampering.
Yes
PGP signatures prove sender and message integrity.
No
Gmail does not offer user-level signing.
Open Source & Auditable Security
Transparency of code and external security audits.
Yes
Fully open-source and independently audited.
No
Proprietary and not open to inspection.
User-Controlled Key Management
Ownership and control of the cryptographic keys securing email.
Yes
User creates and holds private decryption keys.
No
Users have no control over encryption process.
Account Breach Resilience
Keeping emails safe if your email account is hijacked.
Higher
Encrypted emails remain unreadable to attacker.
Low
Full inbox exposed after breach.
Third-Party Access & Legal Requests
Exposure of email content to law enforcement or other third parties without user consent.
Strong Protection
Google can’t decrypt or hand over plaintext.
Vulnerable
Google can hand over readable content.
This table compares Gmail (or other email providers) enhanced by Mailvelope with Gmail in these Google Workspace editions (Business Starter, Standard, Plus, Enterprise Essentials, Education Fundamentals) as well as free Gmail.

Mailvelope Business

for Microsoft 365

  • Same as in Google Workspace
  • Outlook 365 for Web
Coming soon

Mailvelope Business

for Google Workspace

  • Complete UI experience
  • Phishing detection
  • GDPR compliance
  • Security audits
  • Key management
  • Attachments encryption
€2.70/ month per user
Start 14 days trial
Annual Cost: €32.40,Discount: 10%
Try 14 days free (no payment data required), then €32.40 billed per year per user. Auto-renewable. Cancel anytime.
€3.00/ month per user
Start 14 days trial
Monthly Cost: €3.00,Discount: 0%
Try 14 days free (no payment data required), then €3.00 billed per month per user. Auto-renewable. Cancel anytime.

Mailvelope Business

for Nextcloud

  • Same as in Google Workspace
  • Nextcloud Mail
  • Roundcube
More about Mailvelope for Nextcloud
The Guardian Logo

"brings OpenPGP encryption to your webmail service."

Wired Logo

"The easiest way to use PGP today is probably a plugin …called Mailvelope."

International Business Times Logo

"easy-to-use, free way to get PGP encryption"

ijinet Logo

"a simple tool that greatly streamlines the process of mail-encryption."

Wait, there is more!

Mailvelope Encryption Toolbox

Many of our components can also be used standalone in a business setting, for example the Mailvelope Key Server, the file encryption and the form encryption feature.

Contact us to learn more about the possibilities.

Get a quote

Professional Support

All business integrations come with professional support options.

Please check the respective product pages to learn more.