Many thanks for your additional thoughts. Mine is also coming from my outlook calendar. Somehow，。

but somehow they make the original email message disappear. This is happening in multiple unwanted spam invites I have received. I agree， time for Apple to improve their spam calendar event invite detection and either block it， or at least ensure the recipient can delete the event and block the originator. I wonder if anyone from Apple monitors these threads and can respond? ， it is going straight to my calendar via an outlook invite。