Re: How to reply to message in mailing list?

[Eli Zaretskii]

> Date: Sat, 12 Sep 2020 01:12:41 +0000
> From: ej32u@protonmail.com
> 
> Is there a place to read how to interact with the mailing list in general? 

You need to read the list (or at least the message you want to reply
to) in a mail user agent.  Emacs has a couple of them, and there are
others.  The archives of each GNU mailing list are available in mbox
format, which many mail programs can read.

If you read a message from a mailing list in a mail program, then you
will be capable of invoking the "Reply All" action, which will
automatically produce a response that goes to all the addressees,
including the list and the author of the original message.

> Should a certain address be CC'ed when sending messages?

Depends on the list, but most lists want this, yes.