Home Page: https://mailvelope.com

Zimbra: https://zimbra.virtualarchitects.com/service/zimlet/tk_barrydegraaff_zimbra_openpgp/help/index.html

RoundCube: Mailvelope Enigma Plugin

Mailvelope is a tool to send and receive encrypted messages and files to other users. It uses PGP public key cryptography with a default RSA private key size of 4096 bytes, widely considered to be uncrackable.

Mailvelope is primarily a tool for encrypted e-mail, but it can easily be used to encrypt or decrypt files as well.

Mailvelope already works with many webmail providers:

https://mailvelope.com/en/faq#mailer_list

• Virtual Architects Zimbra
• Virtual Architects RoundCube
• Gmail
• Yahoo
• Outlook
• Zoho

Mailvelope is a browser add-on that you can use in:

• Chrome
• Edge
• Firefox
• Brave
• Other Chromium-based browsers

Versions: https://mailvelope.com/en/products

Wiki: https://github.com/mailvelope/mailvelope/wiki

Tutorial: https://mailvelope.com/en/help

Generate a public and private key pair first. Export both keys and back up the .asc file.