The mailman processes on the mailman server will be halted on 2016-06-21 from 16:00 - 18:00 UTC.
I (@RobH) need to do some privacy related message scrubs, and during that time mailman needs to be halted to prevent corruption of message archives.
Due to the private nature of the info being removed, I'll not be listing the affected lists or messages on this task.
I already got a few messages pointing out that taking down the wikimania mailing list the week of folks traveling there may not be ideal for communication!
I'm working with legal to see if I can push this request for scrub to next week.
I neglected to update this task yesterday. So the maint window is delayed until AFTER wikimania. There is an ongoing discussion with the list admins regarding the policy for data scrubs.