I just tried with one of my friends' email. They receive the mail with buttons like accept, decline etc., and the info of the event of course. It was sent from [email protected] but with my name.

.ics of the event, text and HTML files were attached.

^{why didn't you try the same? Although I benefitted but this should be put on hold for lack of research.}

I just tried with one of my friends' email. They receive the mail with buttons like accept, decline etc., and the info of the event of course. The said buttons have URL like: https://www.icloud.com/calendar/eventreply_full/en-gb/<some Key>&cc=IN#reply=accept It was sent from [email protected] but with my name in the Sender.

.ics of the event, text and HTML files were also attached.