About 2 months ago, I set up a #Mobilizon server to give people a decentralized, ActivityPub connected, alternative to #FacebookEvents, https://my-group.events/
It really pleases me to see that people are discovering it and using it to manage events instead of using big-tech owned centralized corporate controlled solutions. We need to keep making these alternatives available to people.
I would think so. I’m not aware of any restrictions, unless they have some maximum number of emails in a specific time period.