List Admins,
Please note that I'll be stopping mailman on 2016-06-21 from 16:00 to 18:00 UTC for some privacy scrubbing of list archives.
Unfortunately, mailman has to be stopped to prevent corruption during the archive rebuild for the affected list(s). I hope not to use the full 2 hour window, but cannot be certain.
Once the work ends and mailman is restarted, all unsent/queued messages will be processed for delivery.