Webmail
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.
Score 89 out of 100. How scoring works
Criteria
-
Yes
Open source Weight 3 of 3
Is all the source code needed to run the product public?
GPL-2.0, with the Horde framework libraries under LGPL.
-
Yes
No trackers or telemetry Weight 3 of 3
Are the website and apps free of third-party trackers, with any analytics anonymous and any telemetry off by default?
No telemetry or analytics in the source code.
-
Yes
No ads or data sales Weight 2 of 3
Is the product funded without advertising, ad targeting or selling user data?
Free open-source software with no ads.
-
No
Independent audit Weight 2 of 3
Has an independent security or privacy audit been published within the last three years?
No independent audit is published.
-
Yes
OpenPGP support Weight 2 of 3
Can the app encrypt and sign mail with OpenPGP, built in or through an official add-on?
PGP and S/MIME encryption and signing are built into IMP, using GnuPG on the server once the administrator configures it.
-
Yes
Connects directly Weight 3 of 3
Does the app connect directly to your mail server, without passing mail or passwords through the vendor's servers?
Self-hosted. Connects from the server where it is installed directly to the IMAP and SMTP servers, with no vendor service involved.
-
Yes
Blocks remote content Weight 2 of 3
Are remote images and tracking pixels blocked by default?
The default image_replacement preference shows inline images and blocks remote images.
-
Yes
Works with any provider Weight 1 of 3
Does the app work with any standard IMAP and SMTP provider?
Works with any IMAP, POP3 and SMTP server.
-
Yes
Self-hostable Weight 1 of 3
Can the webmail be installed on your own server?
Self-hosted software with an official installation guide.