public-inbox - an "archives first" approach to mailing lists ------------------------------------------------------------ public-inbox implements the sharing of an email inbox via git to complement or replace traditional mailing lists. Readers may read via NNTP, IMAP, Atom feeds or HTML archives. public-inbox spawned around three main ideas: * Publicly accessible and archived communication is essential to Free Software development. * Contributing to Free Software projects should not require the use of non-Free services or software. * Graphical user interfaces should not be required for text-based communication. Users may have broken graphics drivers, limited eyesight, or be unable to afford modern hardware. public-inbox aims to be easy-to-deploy and manage; encouraging projects to run their own instances with minimal overhead. Implementation -------------- public-inbox stores mail in git repositories as documented in https://public-inbox.org/public-inbox-v2-format.txt and https://public-inbox.org/public-inbox-v1-format.txt By storing (and optionally) exposing an inbox via git, it is fast and efficient to host and mirror public-inboxes. Traditional mailing lists use the "push" model. For readers, that requires commitment to subscribe and effort to unsubscribe. New readers may also have difficulty following existing discussions if archives do not expose Message-ID and References headers. List server admins are also burdened with delivery failures. public-inbox uses the "pull" model. Casual readers may follow the list via NNTP, IMAP, Atom feed or HTML archives. If a reader loses interest, they simply stop following. Since we use git, mirrors are easy-to-setup, and lists are easy-to-relocate to different mail addresses without losing or splitting archives. _Anybody_ may also setup a delivery-only mailing list server to replay a public-inbox git archive to subscribers via SMTP. Features -------- * anybody may participate via plain-text email * stores email in git, readers may have a complete archive of the inbox * Atom feed, IMAP, NNTP allows casual readers to follow via local tools * uses only well-documented and easy-to-implement data formats Try it out now, see https://try.public-inbox.org/ Requirements for reading: * any software capable of IMAP, NNTP or following Atom feeds Any basic web browser will do for the HTML archives. We primarily develop on w3m to maximize accessibility. Requirements (participant) -------------------------- * any MUA which may send text-only emails ("git send-email" works!) Users are strongly encouraged to use the "reply-all" feature of their mailers to reduce the impact of a public-inbox as a single point of failure. * The HTTP web interface exposes mboxrd files, and NNTP clients often feature reply-by-email functionality * participants do not need to install public-inbox, only server admins Requirements (server) --------------------- See https://public-inbox.org/INSTALL Hacking ------- AGPL source code is available via git: git clone https://public-inbox.org/public-inbox.git git clone https://repo.or.cz/public-inbox.git torsocks git clone http://ou63pmih66umazou.onion/public-inbox.git torsocks git clone http://hjrcffqmbrq6wope.onion/public-inbox See below for contact info. Contact ------- We are happy to see feedback of all types via plain-text email. public-inbox discussion is self-hosting on public-inbox.org Please send comments, user/developer discussion, patches, bug reports, and pull requests to our public-inbox address at: email@example.com Please Cc: all recipients when replying as we do not require subscription. This also makes it easier to rope in folks of tangentially related projects we depend on (e.g. git developers on firstname.lastname@example.org). The archives are readable via IMAP, NNTP or HTTP: nntps://news.public-inbox.org/inbox.comp.mail.public-inbox.meta imaps://news.public-inbox.org/inbox.comp.mail.public-inbox.meta.0 https://public-inbox.org/meta/ AUTH=ANONYMOUS is supported for IMAP, but any username + password works And as Tor hidden services: http://hjrcffqmbrq6wope.onion/meta/ nntp://hjrcffqmbrq6wope.onion/inbox.comp.mail.public-inbox.meta imap://hjrcffqmbrq6wope.onion/inbox.comp.mail.public-inbox.meta.0 You may also clone all messages via git: git clone --mirror https://public-inbox.org/meta/ torsocks git clone --mirror http://hjrcffqmbrq6wope.onion/meta/ Anti-Spam --------- The maintainer of public-inbox has found SpamAssassin a good tool for filtering his personal mail, and it will be the default spam filtering tool in public-inbox. See https://public-inbox.org/dc-dlvr-spam-flow.html for more info. Content Filtering ----------------- To discourage phishing, trackers, exploits and other nuisances, only plain-text emails are allowed and HTML is rejected by default. This improves accessibility, and saves bandwidth and storage as mail is archived forever. As of the 2010s, successful online social networks and forums are the ones which heavily restrict users formatting options; so public-inbox aims to preserve the focus on content, and not presentation. Copyright --------- Copyright 2013-2021 all contributors <email@example.com> License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt> This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program. If not, see <https://www.gnu.org/licenses/>. Additional permission under GNU GPL version 3 section 7: If you modify this program, or any covered work, by linking or combining it with the OpenSSL project's OpenSSL library (or a modified version of that library), containing parts covered by the terms of the OpenSSL or SSLeay licenses, the copyright holder(s) grants you additional permission to convey the resulting work. Corresponding Source for a non-source form of such a combination shall include the source code for the parts of OpenSSL used as well as that of the covered work.