As a Wikimedian I want to be able to follow discussions (read, reply, create) per project or theme in a convenient way, whether through email client on a (mobile) device, webmail on a (mobile) device, or through a web interface of the discussion system itself, so I'm up to date informed about what is going on and can join the conversation anytime as I like.
Alternatives to consider:
* Keep Mailman 2.1
* Migrate to Mailman 3.0 which has a new Django-based web user interface for end users and list administrators named Postorius (not yet officilally sanctioned by GNU)
* Consider Discourse as web interface for Mailman mailing list (requires development of synchronization)
* ~~Consider (flow enabled) talk pages //on wiki// - add support for reply by email to topics on a talk page for example~~
**Not a user story** (original task description)
We should update Mailman to [[https://mail.python.org/pipermail/mailman-announce/2015-April/000210.html|version 3]].
The new version, among others, stores hashed passwords, which could have minimized the impact of [[ http://blog.wikimedia.org/2015/11/12/mailman-security-incident/ | last weeks security incident ]]