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pleo84103,

Are all of the above available with the free version of Groups.io

Short answer: yes.

The group we have in yahoo groups is restricted - by that I mean only
invited folks, and or approved folks who have sent to subscription
email if they know it

In both Yahoo Groups and Groups.io, if you know the group's name then you can create the group's subscription address. For Yahoo Groups it is just "-subscribe" appended to the group name in an email message; for Groups.io it is "+subscribe".

Also in both Yahoo Groups and Groups.io, a person may apply to join a restricted-membership group by clicking on a button on the group's home page (as an alternative to using the email command).

Yahoo Groups has a type of group, "Closed", which Groups.io does not: in Yahoo Groups a "closed" group does not show its home page to non-members and does not allow the subscribe email command - such groups are by invitation only.

Any member of the group may post

Yes.

With moderation capabilities similar to Yahoo Groups, but with the added ability to have a member automatically taken off moderation after a set number of approved postings.

The group is not visible (nor its archives) on the Yahoo Groups page.

As with Yahoo Groups, you can choose whether the Messages are public or members-only, but once you've made them members-only you cannot return them to public.

If your group's messages are public, then your group is listed in the Groups.io directory. Otherwise inclusion in the directory is optional.


See the Pricing page for some more details:
/static/pricing

Shal