A gpg-enabled mailing list manager with remailing-capabilities.

Schleuder is a gpg-enabled mailing list manager with resending-capabilities. Subscribers can communicate encrypted (and pseudonymously) among themselves, receive emails from non-subscribers and send emails to non-subscribers via the list.

To read the documentation see docs.

To install the current version see installation.

To participate in the development use the issue tracker. Please take note of our Code of Conduct.

To contact us read contact.

To be notified of news about Schleuder subscribe to schleuder-announce.


2018-02-19: Linux-packages for Schleuder 3.2.2 available. For Debian (stretch-backports) and CentOS (EL 7) there are now packages of Schleuder version 3.2.2 available to easily install and upgrade it. Please see the installation instructions for details on how to use the packages. For details about version 3.2.2 please read the changelog.

2018-02-06: Schleuder 3.2.2 released! This release fixes some minor bugs, e.g. with lingering dirmngr-processes, parsing keywords from big messages, and OpenPGP-keys with non-ASCII-characters. It also pins the “mail”-library to version 2.6, because 2.7 seems to have problems. For all details please see the changelog.

2017-10-24: Schleuder 3.2.1 released! This release adds an explicit dependency on ruby-gpgme >= 2.0.13, which includes a fix for a bug people have run into. Please see the changelog of schleuder for details.

2017-10-23: Schleuder 3.2 released! This release adds two new features: An internal footer to be appended to each mail sent to a subcribed address, and an option to use an OS-wide defined keyserver (useful on Debian 9). On top, two new keywords: X-RESEND-UNENCRYPTED and X-RESEND-CC-UNENCRYPTED will send out mails in the clear, regardless of whether relevant keys exist. Additionally, some bugs were fixed. Don’t forget to run schleuder install after the update to apply a necessary database migration. Please see the changelog of schleuder for details.

Older news can be found in the archive of the announce-mailinglist.