I have an issue where my calendar does not send a response to the person who sent me an invite when accepting or declining invitations.
I thought this might have been an issue with Calendar, so I bought Fantastical, but still it doesn't work, so something must be wrong in my settings somehow.
Googling has brought me to a few solutions, namely making my contact in Contacts "Make this my card" -- did that, but no luck.
What am I missing? Is it something with my email account settings? Dumb question?