We currently operate three mailing lists:

Low traffic and moderated - for announcements from the abc team.
For discussion about use of abc.
For discussion about development of abc.

To join a list, send an email to majordomo@sable.mcgill.ca with 'subscribe listname' in the body (where 'listname' is replaced by one of 'abc-announce', 'abc-users' and 'abc-dev'. You can send multiple subscribe commands in one email.

To post to a list, simply email the appropriate list address. As an anti-spam measure, you will need to be subscribed to one of the three lists to post to either the abc-users or abc-dev lists; only members of the abc team can post to the abc-announce list.

Archives for the lists can be found here: abc-announce, abc-users, abc-dev.