This may be useful. I have seen this in a number of groups.io groups, there it was done through a reminder in the calendar of groups.io.

Met vriendelijke groet / Kind regards,
Artin Dekker
Beheerder win10-nl mailgroep
https://win10-nl.groups.io/g/algemeen

Op 27-12-2017 om 10:36 schreef Brian's Mail list account via Groups.Io:

I am not sure if the groups.io system supports it, but in the past many groups I've belonged to, and of course Usenet Newsgroups, use a system where every month or so, a post is made purely to point people at resources like how to report bugs, who to talk to about this or that etc etc.
I have seen nothing her, and although one might say every post has a very helpful footer, many never see it as the quoted text gets longer.
I suggest somebody discusses this idea here, and what might be in it. Once set up, assuming it can be, by the list owner, it will only need editing when something changes.
Brian

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