Preventing Spam iCloud Calendar Invites

How do I prevent this from happening in the future? How the hell did it happen? Turns out it’s Apple again – thinking they know better for how you want to use e-mail and calendars. Thankfully there is an option to prevent the forced invites.

My wife got one of these last night attached to one of our shared calendars. The instructions here can help you prevent them and get rid of any you’ve already received.