@Dzahn suggested it on irc and @bd808 said to create a task for this.

Something worth pursuing to prevent spam being sent to labs and ops.

context: We were talking about mail that is sent to root@ on VPSes. There is an alias root: root@wmflabs.org (or @wikimedia.org) and i thought "the ideal recipient of this would be a generic alias that automatically contains the project admins of the current project". Because these are the people who are root on their instances and should be told if, for example, crons fail.

So the idea is to have something like: root@$project.wmflabs.org or $project-admins@wmflabs.org that automatically exists for each project and ideally gets automatically updated when project admins change. --Dzahn