# Open-source webmail

8 open-source webmail rated against public privacy criteria.

1. [Horde Groupware Webmail Edition](https://privacyratings.com/webmail/horde-groupware/): B (89/100). Self-hosted, open-source groupware suite built on the Horde framework, with the IMP webmail client, mail filters, calendar, contacts, tasks and notes.
2. [SnappyMail](https://privacyratings.com/webmail/snappymail/): B (89/100). Self-hosted, IMAP-only webmail client forked from RainLoop, with built-in OpenPGP support.
3. [Cypht](https://privacyratings.com/webmail/cypht/): B (84/100). Self-hosted, open-source webmail that combines several IMAP, JMAP and SMTP accounts, plus feeds, in one interface, built from optional modules.
4. [Nextcloud Mail](https://privacyratings.com/webmail/nextcloud-mail/): B (84/100). Open-source mail app for self-hosted Nextcloud servers that adds webmail for any IMAP account, with S/MIME, Mailvelope support and integration with Nextcloud contacts and calendar.
5. [RoundCube](https://privacyratings.com/webmail/roundcube/): B (84/100). Browser-based multilingual IMAP client with an application-like user interface.
6. [SquirrelMail](https://privacyratings.com/webmail/squirrelmail/): B (79/100). Self-hosted PHP webmail with built-in IMAP and SMTP support that renders plain HTML pages without JavaScript and is extended through plugins.
7. [Afterlogic WebMail Lite](https://privacyratings.com/webmail/afterlogic-webmail-lite/): C (74/100). Self-hosted, open-source PHP webmail for an existing IMAP server, with contacts, OpenPGP in the browser and a module system. A paid Pro edition adds more features.
8. [SOGo](https://privacyratings.com/webmail/sogo/): C (63/100). Self-hosted, open-source groupware server with webmail, calendars and address books, supporting CalDAV, CardDAV and ActiveSync. It uses an existing IMAP server for mail.

Source: https://privacyratings.com/open-source/webmail/