Pending:

  * Decide on domain naming logic
    + lists.$DOMAIN (plural?)
    + lists.$PROJECT / lists.$COMMUNITY / lists.$PROVIDER
  * Decide on list name(s)
    + press@$HOST / $PROJECT-press@$HOST / $COMMUNIT-$PROJECT-press@$HOST
  * Decide on daemon
    + mailman
    + mailman3
    + sympa
  * Configure list profile
    + publish-only
    + public, group-write
    + group-only
    + group-only, secure
  * Document use
  * Document maintenance
    + Screen suspicious incoming mail