Stefan Moch [off-list ref] writes:
Good idea to write this down. How to use the mailing list is only
sparsely documented. The following files talk about sending to the
mailing list:
1. README.md
2. Documentation/SubmittingPatches
3. Documentation/MyFirstContribution.txt
4. MaintNotes (in Junio's “todo” branch, sent out to the list from
time to time as “A note from the maintainer”)
2, 3 and 4 mention sending Cc to everyone involved.
2 is about new messages.
3 and 4 specifically talk about keeping everyone in Cc: in replies.
Both in the context of “you don't have to be subscribed and you
don't need to ask for Cc:”.
In case somebody wants to write a doc, a better pair of references
than what I quoted earlier to draw material from are:
https://public-inbox.org/git/7v4pndfjym.fsf@assigned-by-dhcp.cox.net/
https://public-inbox.org/git/7vei7zjr3y.fsf@alter.siamese.dyndns.org/