A turnkey solution for building old-school mailing lists?

Question

Email

My question has nothing to do with spamming and Internet marketing in general. Those under 35 or 40 usually don't even understand what the point is; this is normal.
So: there is a small group of people who would like to brainstorm through a common traditional email address. New people may subsequently join the discussion, and some of the former participants may disconnect.
What I'm after was once called mailing list , but that term is now part of the spammers' lexicon, so I don't even know what term to use now.
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Here are the system requirements:

1. There is a special address - for example, [email protected]where the domain example.comis registered in my name.
   
2. There is an interface that is available to regular email users (including non-computer professionals) that allows you to subscribe to and unsubscribe from this mailing list .
   
3. By default, there are no restrictions on which addresses can be signed. (In particular, they do not have to be in the same . domain example.com.) Any member of the list can use it with their regular email address, through their usual mail system (be it the Mail.ru web interface or some Thunderbird).
   
4. There is a list administrator (for example, me) who has access to the simplest management mechanisms : manually subscribe or unsubscribe a member, set restrictions on allowed addresses, etc.
   
5. A letter from each member of the list, sent to the address [email protected], is received by all members of the list. At the same time, it is Reply-Toautomatically set to the same one [email protected], so that the usual answer to this letter will again go to all subscribers.
   

   The last requirement usually does not reach everyone, but this is exactly how the system I need differs from the group address . There are already more group addresses in each office than there are employees, and mailing lists were forgotten by everyone in the late 1990s.

   
   
6. It is also desirable that there be a web page with an up-to-date archive of the entire mailing list.
   

A similar system that has survived to this day can be found, for example, on the website of the Unicode Consortium .
Finally, I'm looking for a ready-made system that doesn't require deploying your own mail server or compiling Gentoo via TTY to set it up.
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Addendum based on comments.Why was there a need for such a system at all? It is required to provide a means of collective communication for people who have nothing in common except e-mail. There is no way to force everyone to switch to any single means of communication (be it WhatsApp, even Yandex.Connect), nor is it possible to ensure that everyone uses Reply All correctly. It is only possible to show everyone one common address and command “write here”.

Answer 1

Members do not need to create an account.
Use Google Groups .
The Direct Add Members feature allows you to sign someone up without creating an account.
See screenshot:

Answer 2

Well, these are newsgroups, they probably worked with FIDO,
the most famous heir - https://groups.yahoo.com/
and Google too

Answer 3

He?
In general, it's easy to google for "mailing list manager". I don’t know how it is in Russia, but there are a lot of them in Bourgeoisindia ...