# Horde Groupware Webmail Edition privacy rating

Self-hosted, open-source groupware suite built on the Horde framework, with the IMP webmail client, mail filters, calendar, contacts, tasks and notes.

## Summary

Horde Groupware Webmail Edition scores 89 out of 100 (grade B) on the webmail criteria. It meets 8 of 9 criteria: open source, no trackers or telemetry, no ads or data sales, OpenPGP support, connects directly, blocks remote content, works with any provider and self-hostable. It does not meet independent audit.

- Website: https://www.horde.org/apps/webmail/
- Source code: https://github.com/horde/imp
- License: GPL-2.0
- Platforms: Web
- Home page trackers: none found
- Category: [Webmail](https://privacyratings.com/webmail/)
- Grade: B (89/100)

## Criteria

| Criterion | Answer | Note | Evidence |
| --- | --- | --- | --- |
| Open source | Yes | GPL-2.0, with the Horde framework libraries under LGPL. | https://github.com/horde/imp/blob/FRAMEWORK_6_0/LICENSE |
| No trackers or telemetry | Yes | No telemetry or analytics in the source code. | https://github.com/horde/imp |
| No ads or data sales | Yes | Free open-source software with no ads. | https://www.horde.org/apps/webmail/ |
| Independent audit | No | No independent audit is published. |  |
| OpenPGP support | Yes | PGP and S/MIME encryption and signing are built into IMP, using GnuPG on the server once the administrator configures it. | https://www.horde.org/apps/webmail/ |
| Connects directly | Yes | Self-hosted. Connects from the server where it is installed directly to the IMAP and SMTP servers, with no vendor service involved. | https://github.com/horde/imp |
| Blocks remote content | Yes | The default image_replacement preference shows inline images and blocks remote images. | https://github.com/horde/imp/blob/FRAMEWORK_6_0/config/prefs.php |
| Works with any provider | Yes | Works with any IMAP, POP3 and SMTP server. | https://github.com/horde/imp/blob/FRAMEWORK_6_0/doc/INSTALL.rst |
| Self-hostable | Yes | Self-hosted software with an official installation guide. | https://github.com/horde/imp/blob/FRAMEWORK_6_0/doc/INSTALL.rst |

Source: https://privacyratings.com/webmail/horde-groupware/
Edit: https://github.com/privacyratings/privacyratings.com/edit/main/ratings/webmail/horde-groupware.md