Accept/Maybe/Decline Missing in Apple Mail

mail.app

I'm using Apple mail with a fresh install of MacOS and I'm missing the Accept/Maybe/Decline buttons on calendar invites. My company uses a Exchange 2013 server and some other users do see the buttons. For me, I just see an email with an attached .ics file for the same invites.

Expected behavior seen by some people….
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How my mail app shows it…

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Best Answer

Open the Contacts app, select your own email address in the list of contacts. In the menu on top of the screen, go to "Card" -> "Make this my card". Reload calendar. Then it should work, you will get a notification popup with accept/decline buttons. (I just had the same problem, on a Mac running Yosemite) Source

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