MailmanLists' servers are well maintained and are periodically taken offline for software upgrades - 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)

Server Date/time (UTC) Expected downtime
London, UK Sunday 18 November 2018 at 01:00 Less than 30 minutes
New York, USA Sunday 25 November 2018 at 06:00 Less than 30 minutes
Bissen, Luxembourg Sunday 2 December 2018 at 02:00 Less than 30 minutes
Sydney, Australia Sunday 9 December 2018 at 12:00 Less than 30 minutes
Amsterdam, Netherlands Sunday 16 December 2018 at 02:00 Less than 30 minutes