MailmanLists' servers are well maintained and are periodically taken offline for software updates - typically once a month for a few minutes. Any messages posted to an off-line server get queued and then delivered when the server is brought back online.

To be notified of upcoming changes and scheduled outages, please subscribe to notices (at)

It's currently Friday, 19 April 2019 – 10:26 (GMT).

Server Scheduled outage on: Expected downtime
Sydney, Australia Saturday 20 April 2019 at 01:00 (GMT) Less than 15 minutes
Amsterdam, Netherlands Saturday 27 April 2019 at 02:00 (GMT) Less than 15 minutes
Singapore, Singapore Saturday 4 May 2019 at 18:00 (GMT) Less than 15 minutes
New York, USA Saturday 11 May 2019 at 07:00 (GMT) Less than 15 minutes