Nextcloud and Mailvelope partner for easy end-to-end encryption for Nextcloud Mail

Stuttgart / Zellingen, January 30, 2025: Digital collaboration platform provider Nextcloud and Mailvelope partner to provide end-to-end email encryption. Through this partnership, enterprise customers can rely on PGP encrypted and signed, secure data and communications.

Open source browser extension Mailvelope integrates with Nextcloud Mail, making it easy to send encrypted emails using PGP. Pretty Good Privacy is an encryption system, allowing users who have never met to send encrypted messages to each other without exchanging private encryption keys.

Key benefits for joint customers are:

• Encrypt and decrypt mail and files
• Sign emails and verify signatures
• Seamless attachment handling in Nextcloud’s mail interface
• Supports PGP/MIME (encrypt and sign email with attachments in one structure)
• One-click creation of public and private keys
• Automatically uploads public key and automated public key detection of recipient when composing email
• Protocol for easy and user-friendly key exchange
• Easily detect phishing attempts (signature mismatch)

Frank Karlitschek, Founder & CEO at Nextcloud, said: «We make digital collaboration easy for our customers and help them regain control over their data. Thanks to our partnership with Mailvelope, joint customer can benefit from reliable and secure encryption solutions.“

Thomas Oberndoerfer, founder of Mailvelope said: “We are excited to partner with Nextcloud to bring our PGP-based end-to-end encryption to enterprises. This collaboration ensures that users can enjoy secure and private email communications seamlessly within their browser.”

The partnership offers seamless PGP based email encryption, which comes in addition to the existing support for Secure/Multipurpose Internet Mail Extensions (S/MIME) encryption in Nextcloud Mail, which allows users to encrypt and sign emails using public key cryptography.

More information on Nextcloud Mail and Groupware.

About Mailvelope

Launched in 2012, open source project Mailvelope is a browser extension for Chrome, Edge and Firefox to securely encrypt emails with PGP. Security is evaluated by regular security audits. Mailvelope has more than 250,000 users worldwide and cooperates with the leading German email providers such as 1und1, Freenet, GMX, Posteo, Telekom and WEB.DE to make secure webmail even easier and more convenient. Mailvelope GmbH, based in Germany, offers support and services for open source encryption solutions. More information: mailvelope.com

About Nextcloud
Nextcloud Hub is the leading open source, on premise content collaboration platform with a strong focus on data protection. It is deployed by tens of thousands of organizations to stay in control of their sensitive content in compliance with privacy regulations like GDPR and HIPAA.

Nextcloud presents a unified, comprehensive platform addressing collaboration needs through document sharing, real-time editing, video conferencing, calendaring, mail and other capabilities. This singular approach across mobile, web and desktop interfaces provides a superior user experience and increased productivity.

It is designed with an open, modular architecture that enables organizations to optimize their content collaboration both within and outside their organization. More information on nextcloud.com.

Press contacts
Nextcloud GmbH
Jos Poortvliet
Phone: +49 (0) 171 121 7528
pr@nextcloud.com