It has been a couple of years since I discontinued the Yahoo group simply because Yahoo turned to crap. I found a site called groups.io that behaves just like the old Yahoo groups, even older, it was designed by the guy that made onelist, the group service that got bought by Yahoo. You'll find it at the site called empire@groups.io.
For those looking for the specific link, it's at https://groups.io/g/Empire (https://groups.io/g/Empire). Have fun out there!