Encrypt any email with CipherMail

Encrypt any email message using the S/MIME and certificates technology with CipherMail

As of May 2026, Encrypt any email with CipherMail has 3,000 users and a 3.83/5 rating from 6 reviews in the Privacy & Security category.

Usersno change0%
3.0K
3,000
Ratingno change0%
3.83
6 reviews
Reviewsno change0%
6
Version
1.9.2
Manifest V3

Permissions & access

Permissions
None declared
Host access
None declared

Screenshots

Encrypt any email with CipherMail screenshot 1Encrypt any email with CipherMail screenshot 2Encrypt any email with CipherMail screenshot 3

About

Send and receive encrypted email messages using the S/MIME technology. CypherMail allows to exchange encrypted email messages. 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 extended usage.


The main CypherMail 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’n’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.
- Supports the mail server protocols SMTP and IMAP.
- Fully integrated with the offilive.com platform, that also allows to manage business email domains.

Technical

Version
1.9.2
Manifest
V3
Size
683KiB
Min Chrome
88
Languages
18
Featured
No

Metadata

ID
kglnjjnnogbbahhiaejmjfggoeijfmak
Developer ID
uc16390cfa11bbdff5337b0d444c0c591
Developer Email
[email protected]
Created
Jan 4, 2018
Last Updated (Store)
Oct 15, 2022
Last Scraped
May 21, 2026
Support URL

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Data sourced from the Chrome Web Store · last verified May 21, 2026.