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| == Source code revision control == Mailman's source code is published in a publicly available revision control system called [[http://www.bazaar-vcs.org|Bazaar]] available through the code hosting and open source development service called [[http://launchpad.net|Launchpad]]. On June 22, 2007, we switched from using Subversion on SourceForge to the new repository, and while the old Subversion repository will still be available read-only, no new updates will be committed to it. Hosting the source code on Bazaar provides both the core developers and unofficial third party extensions much more freedom to hack on Mailman. |
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| Here is more detail on how to [[../MailmanOnLaunchpad|develop Mailman code using Bazaar and Launchpad]]. | Thank you for contributing to Mailman! Please also see the [[../../Mailman3|Mailman 3]] release notes. |
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| Here are a list of [[../MailmanBranches|important official and unofficial branches]]. | This year we will be applying to Google's [[https://summerofcode.withgoogle.com/|Summer of Code]]. For information about Mailman's project ideas, click here: [[DEV/Google Summer of Code 2023|Google Summer of Code 2023]]. == How to get started == Please read the [[../HowToContributeGit| git quickstart]] before doing anything else! The [[../SetupDevEnvironment|Setup instructions]] will guide you through the process of setting up all the projects so you can start developing. == Contributing to Mailman, step 1: Git and Gitlab == Mailman 3's source code is published in [[http://git-scm.com/|git]]. Project management is available on [[https://gitlab.com/mailman/mailman|Gitlab]]. We switched from Bazaar on Launchpad on May 4th, 2015. Previous to that, we switched from Subversion on !SourceForge on June 22, 2007. '''Please note:''' Mailman 2.1 development continues to be hosted in Bazaar on [[../MailmanOnLaunchpad|Launchpad]]. For now, the Mailman 3 branch on Launchpad will continue to be available in read-only mode. == Contributing to Mailman, step 2: Contribution workflow process == 1. A developer has an idea for an enhancement. They discuss it on the [[http://mail.python.org/mailman/listinfo/mailman-developers|mailman-developers]] mailing list. For higher bandwidth discussions we can use irc (#mailman channel on [[irc://libera.chat|irc://libera.chat]]). 1. Developers can clone our git repository, push their own branches, and submit [[https://gitlab.com/mailman/mailman/merge_requests|a merge request]] against the official branches. 1. If the idea is appropriate for GNU Mailman and we decide to include it, FSF must get copyright assignments from the developer. See below. Do this early, since it can take some time to get all the paperwork to the FSF. == Branch development guidelines == * Branches should be self-contained: Include documentation, a NEWS entry, and tests. Ideally, there would be one bug for every branch. * Be sure your branch does not provoke any regressions. Run {{{tox}}} on your branch and be sure everything passes. Eventually, we'll enable CI on Gitlab so you'll know immediately whether your branch is ready for merging. * Branches should be as small as possible. The smaller the branch the easier it is to review. == Contributing to Mailman, step 3: Copyright assignment == Mailman is a [[http://www.gnu.org|GNU]] project with the majority of the copyrights being held by the [[http://www.fsf.org|Free Software Foundation]]. We therefore request that developers who contribute code, assign their copyrights in their Mailman contribution to the FSF. To do this, you first need to submit a [[../GNU copyright assignment request form|GNU copyright assignment request form]] containing some basic information, and then fill out the form that the FSF sends you. Please [[mailto:mailman-cabal@python.org|let us know]] after you've sent the second form so that we can track your contribution. The FSF often doesn't tell us in a timely manner when such forms have been received. |
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| Here are the collection of resources for people interested in the development of Mailman. | Mailman's developers are currently focused mostly on working towards the release of Mailman 3.0. |
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| * [[../Mailman 2.2|Mailman 2.2]] * [[../Mailman 3.0|Mailman 3.0]] == Initiatives and proposals == |
* [[../Mailman 2.2|Mailman 2.2]] -- 2.1 is the stable branch, now in maintenance mode * [[../Mailman 3.0|Mailman 3.0]] -- 3.0 is the stable Mailman 3 release * [[../Mailman 3.1|Mailman 3.1]] * [[../Mailman 3.2|Mailman 3.2]] == Sprints == * [[../Google_Summer_of_Code_2015|Google Summer of Code 2015]] * [[../PyCon 2015 Sprint|PyCon 2015 Sprint]] * [[../Google Summer of Code 2014|Google Summer of Code 2014]] * [[../PyCon 2014 Sprint|PyCon Sprint 2014]] * [[../Google Summer of Code 2013|Google Summer of Code 2013]] * [[../PyCon Sprint 2013|PyCon Sprint 2013]] * [[../Google Summer of Code 2012|Google Summer of Code 2012]] * [[../Google Summer of Code 2011|Google Summer of Code 2011]] * [[http://wiki.list.org/display/DEV/GHC12+Open+Source+Day+Hackathon|GHC12 Open Source Day Hackathon]] * [[../Google Summer of Code 2011|Google Summer of Code 2011]] * [[../PyCon Sprint 2010|PyCon Sprint 2010]] * [[../PyCon Sprint 2009|PyCon Sprint 2009]] * [[../Google Summer of Code 2008|Google Summer of Code 2008]] * [[../Google_Summer_of_Code_2006|Google Summer of Code 2006]] == Initiatives, proposals, ideas == * [[../New Logos|New Logos]] |
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| * [[../DKIM|DKIM]] | * [[../DKIM|DKIM]] and [[../DMARC|DMARC]] |
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| * [[../Web Interface|Web Interface]] * [[../ModernArchiving|Modern Archiving]] |
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| * [[../REST Interface|REST Interface]] * [[../Google Summer of Code 2008|Google Summer of Code 2008]] |
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| == Other developer information == Google did a [[http://code.google.com/soc/|2006 Summer of Code]]program in 2006, and Mailman was a sponsor. See the [[../Summer of Code|Summer of Code]] page and [[../Mailman 2.2|Mailman 2.2]] page for more information. |
* [[../ReplyTo|ReplyTo]] * [[../Usability|Usability]] * [[../ModernArchiving|Modern Archiving]] (currently HyperKitty in [[../Mailman 3.0|Mailman 3]]) * [[../Postorius Web Interface|Postorius Web Interface]] (in [[../Mailman 3.0|Mailman 3]]) * [[../REST Interface|REST Interface]] (a part of [[../Mailman 3.0|Mailman 3]] core) * [[http://blog.linuxgrrl.com/2012/03/14/mailman-brainstorm-2/|Mairin Duffy's blog ideas]] |
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| Mailman is a [[http://www.gnu.org|GNU]] project with the majority of the copyrights being held by the [[http://www.fsf.org|Free Software Foundation]]. We therefore request that developers who contribute code, assign their copyrights in their Mailman contribution to the FSF. To do this, you first need to submit a [[../GNU copyright assignment request form|GNU copyright assignment request form]] containing some basic information, and then fill out the form that the FSF sends you. Please [[mailto:mailman-cabal@python.org|let us know]]after you've sent the second form so that we can track your contribution. The FSF often doesn't tell us in a timely manner when such forms have been received. | == Suggestions == People seem to have trouble figuring out where to make suggestions or feature requests. There is a [[../suggestions|suggestions]] page here, or you may wish to start a discussion on the [[http://mail.python.org/mailman/listinfo/mailman-developers|mailman-developers list]] |
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| * [[http://en.wikipedia.org/wiki/Bounce_Address_Tag_Validation|Bounce Address Tag Validation (BATV)]] * [[http://www.ietf.org/id/draft-shafranovich-feedback-report-07.txt|Extensible Format for Email Feedback Reports]] * [[https://www.owasp.org/index.php/Forgot_Password_Cheat_Sheet|Forgotten Password recommendations from OWASP]] * [[http://www.faqs.org/rfcs/rfc6530.html|RFC 6530 - Overview and Framework for Internationalized Email]] * [[http://www.faqs.org/rfcs/rfc6531.html|RFC 6531 - SMTP Extension for Internationalized Email]] * [[http://www.faqs.org/rfcs/rfc6532.html|RFC 6532 - Internationalized Email Headers]] |
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| * Anti-spam and anti-backscatter | * OWASP's [[https://www.owasp.org/index.php/Forgot_Password_Cheat_Sheet|password reset]] recommendations * Anti-spam and anti-backscatter<<BR>> |
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| * <<Verbatim([)>>A talk given at a UK Unix User Group meeting. Look for the 5th abstract on [[http://www.ukuug.org/events/winter2005/programme.shtml|this page]]. * [[http://www.dontbouncespam.org/]] * [[http://spamlinks.net/prevent-secure-backscatter.htm]] |
* A talk given at a UK Unix User Group meeting. Look for the 5th abstract on [[http://www.ukuug.org/events/winter2005/programme.shtml|this page]]. * [[http://www.dontbouncespam.org/|http://www.dontbouncespam.org/]] * [[http://spamlinks.net/prevent-secure-backscatter.htm|http://spamlinks.net/prevent-secure-backscatter.htm]] |
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| HE institutions has [[http://www.ja.net/services/csirt/advice/policies/collateral-spam.html|guidance to victims of backscatter]]. |
* HE institutions has [[http://www.ja.net/services/csirt/advice/policies/collateral-spam.html|guidance to victims of backscatter]]. |
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| * Mailman's own recommendations for [[SEC/Controlling spam|controlling spam]] | * Mailman's own recommendations for [[../../SEC/Controlling spam|controlling spam]] |
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| * [[DEV/Google Summer of Code 2015|Google Summer of Code 2015]] * [[DEV/Google Summer of Code 2016|Google Summer of Code 2016]] * [[DEV/Google Summer of Code 2019|Google Summer of Code 2019]] * [[DEV/SeasonOfDocs2019|Mailman Season of Docs 2019]]. * [[DEV/Google Summer of Code 2021|Google Summer of Code 2021]] * [[DEV/Google Summer of Code 2022|Google Summer of Code 2022]] |
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| * [[DEV/PyCon 2014 Sprint|PyCon 2014 Sprint]] | |
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| * [[DEV/PyCon 2014 Sprint|PyCon 2014 Sprint]] * [[DEV/PyCon 2015 Sprint|PyCon 2015 Sprint]] |
Mailman Developer Resources
Thank you for contributing to Mailman! Please also see the Mailman 3 release notes.
This year we will be applying to Google's Summer of Code. For information about Mailman's project ideas, click here: Google Summer of Code 2023.
How to get started
Please read the git quickstart before doing anything else!
The Setup instructions will guide you through the process of setting up all the projects so you can start developing.
Contributing to Mailman, step 1: Git and Gitlab
Mailman 3's source code is published in git. Project management is available on Gitlab. We switched from Bazaar on Launchpad on May 4th, 2015. Previous to that, we switched from Subversion on SourceForge on June 22, 2007.
Please note: Mailman 2.1 development continues to be hosted in Bazaar on Launchpad.
For now, the Mailman 3 branch on Launchpad will continue to be available in read-only mode.
Contributing to Mailman, step 2: Contribution workflow process
A developer has an idea for an enhancement. They discuss it on the mailman-developers mailing list. For higher bandwidth discussions we can use irc (#mailman channel on irc://libera.chat).
Developers can clone our git repository, push their own branches, and submit a merge request against the official branches.
- If the idea is appropriate for GNU Mailman and we decide to include it, FSF must get copyright assignments from the developer. See below. Do this early, since it can take some time to get all the paperwork to the FSF.
Branch development guidelines
- Branches should be self-contained: Include documentation, a NEWS entry, and tests. Ideally, there would be one bug for every branch.
Be sure your branch does not provoke any regressions. Run tox on your branch and be sure everything passes. Eventually, we'll enable CI on Gitlab so you'll know immediately whether your branch is ready for merging.
- Branches should be as small as possible. The smaller the branch the easier it is to review.
Contributing to Mailman, step 3: Copyright assignment
Mailman is a GNU project with the majority of the copyrights being held by the Free Software Foundation. We therefore request that developers who contribute code, assign their copyrights in their Mailman contribution to the FSF. To do this, you first need to submit a GNU copyright assignment request form containing some basic information, and then fill out the form that the FSF sends you. Please let us know after you've sent the second form so that we can track your contribution. The FSF often doesn't tell us in a timely manner when such forms have been received.
Version-specific resources
Mailman's developers are currently focused mostly on working towards the release of Mailman 3.0.
Mailman 2.2 -- 2.1 is the stable branch, now in maintenance mode
Mailman 3.0 -- 3.0 is the stable Mailman 3 release
Sprints
Initiatives, proposals, ideas
Modern Archiving (currently HyperKitty in Mailman 3)
REST Interface (a part of Mailman 3 core)
Suggestions
People seem to have trouble figuring out where to make suggestions or feature requests. There is a suggestions page here, or you may wish to start a discussion on the mailman-developers list
Relevant RFCs, references, and standards
Here are some useful RFCs, references and drafts:
A Highly Scalable Electronic Mail Service Using Open Systems (Christenson, et al)
RFC 3834 - Recommendations for Automatic Responses to Electronic Mail
RFC 2034 - SMTP Service Extension for Returning Enhanced Error Codes
RFC 6530 - Overview and Framework for Internationalized Email
Best practices:
OWASP's password reset recommendations
Anti-spam and anti-backscatter
A talk given at a UK Unix User Group meeting. Look for the 5th abstract on this page.
The inevitable "...considered harmful" article.
- UK Joint Academic Network (JANet) provides network connectivity and services for UK
HE institutions has guidance to victims of backscatter.
...and to system adminstrators Spam Bounces Considered Harmful.
Mailman's own recommendations for controlling spam