CipherMail web extension to encrypt Gmail with S/MIME
CipherMail is an extension to send and receive encrypted email messages with any email account like Gmail, Yahoo, Outlook and many more using the S/MIME technology. App available in the Chrome web store and Firefox marketplace:
Send and receive encrypted email messages with any email account like Gmail, Yahoo, Outlook and many more using the S/MIME technology. CipherMail allows to exchange encrypted email messages with your Gmail, Yahoo, Outlook or any email address that you use. The encryption is S/MIME standard, the solution recommended by the security experts, and it is based on certificates. The certificates are generated on the fly when an email address is used. They are issued by an internal PKI that generated certificates with emailProtection key usage.
The main CipherMail features are:
- S/MIME 3.1 (X.509, RFC 3280) email encryption.
- Compatible with existing S/MIME clients (like Outlook, Thunderbird etc.).
- Certificates for S/MIME email encryption are automatically generated for each contact.
- PKI included in the solution to issue the certificates.
- Modern user interface, with drag and drop of files, progress bar for file uploading, browser notifications, embed images into messages, keyboard shortcuts, multi-language mails, ..
- Both message and attachments are encrypted.
- Text plain and HTML email support. Both formats are encrypted.
- Contact management. - Autocompletion of e-mail addresses.
- Token-based security engine is used for protection from CSRF attacks.
- Integration with Google using OAuth2.
- Supports the mail server protocols SMTP and IMAP.
- Email domains provisioned are gmail.com, gmx.com, icloud.com, outlook.com, yahoo.com, zoho.com, hotmail.com, live.com and hundreds more.
If we do not support your email domain yet you can request it sending us an email message to [email protected].