We can copy most of the checks from mailman2, but we should also verify all the individual mailman3 services (hyperkitty, mailman-web, mailman) are all running.
Customize query in gerrit
|Resolved||Security||None||T181803 Stop storing Mailman passwords in plain text|
|Resolved||None||T118641 Implement proper AAA for lists.wikimedia.org (mailman)|
|Resolved||None||T190054 List archives on lists.wikimedia.org is not mobile friendly|
|Resolved||None||T115329 "From" at start of line becomes ">From" in pipermail|
|Resolved||None||T52864 Upgrade GNU Mailman from 2.1 to Mailman3|
|Resolved||Legoktm||T278280 Setup monitoring for mailman3|
I think we're mostly good here.
https://grafana.wikimedia.org/d/GvuAmuuGk/mailman3?orgId=1 has the lists-next queue sizes but eventually I'll just edit the existing mailman dashboard to look at the mm3 paths.