clarkwinkelmann thank you for responding!
Just checked and we are on the free version:
Flarum
1.3.1PHP
8.0.14MySQL
10.6.5-MariaDB-1:10.6.5+mariafocal
So it looks like we're on the most current version.
I cleared the cache and tested creating a new topic and I'm still not getting any email notifications.
If you see anything I'm missing, thanks for any recommendations on what I can do.