Mavericks calendar not retrieving invitations from mail

Okay, I've found a workaround, but not sure if this worked under Mavericks as I'm now in Yosemite.

- In Calendar, hit Calendars button to make Calendar sidebar visible

- Drag the .ics file to one of the calendars in the *sidebar* — not onto the calendar itself

- The event nows shows up in my little Calendar inbox icon (down arrow) and as a pending event in the calendar itself.

Previously, I was always just going to my iPhone to accept events in Mail as that worked just fine (and synced to my Mac via iCloud)

Anyway, this works well enough for me. Automatic would be nice again but this takes a few seconds. 🙂

This works for me too... (on Yosemite too BTW). Still would like to go back to the old days, when this features was just working fine....

I had the same problem. I found the problem to be the delegate section. This might not apply to you entirely but you can try. Calender > Preferences > Select Exchange account> Delegation> Edit at bottom> A small window pops out. We have a shared calendar to which I was subscribed. This calendar was setup to accept all the invitation. Once I removed this calendar everything was normal. Before this I would not see any emails regarding the events, accept or decline them, they simply all got added to the calendar automatically. The preference section of the Mail was set to "Automatically add the event to calendar".

I am on Yosemite OS X V 10.10.3. I continue to have the same problem. Apple does not seem to care. I have to download the iCal File in the email, then go to my Downloads Folder and double-click the file. It opens up on the correct date and time on iCal. However today I noticed that Travel Time applied by the invitee does not reflect on my Calendar. What a mess, and so much time wasted. I probably should go back to Google Calendar. 😟 I thought I could as always do everything and more on my Mac. We sure miss Mr. Jobs.

Yes, this is exactly the situation I have.

If I click "Accept" on the banner at the top of the mail message, it accepts the invitation to my Exchange calendar on the server, regardless if I have that calendar configured in the OS X Calendar or not. To see those appointments, turn on the OS X Calendar support for the Exchange account, and they're there. However, that's not what I want to do either; I want to accept those appointments into my iCloud "Work" calendar, and I just don't see a way to make that happen.

I've had this same problem. Apple was unable to help and sort of told me that is the way it is... Well, i did another search today and finally, the answer, at least for me:

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.

My version of this problem is acceptances from other people.

OS X Calendar sends invitation requests with the subject "Invitation: [Meeting Title]".

Outlook changes the subject line of the response to "Accepted: Invitation: [Meeting title]". That seems to confuse Calendar. When you use the space bar to show a preview of the ICS file in the acceptance, it pops up a new invitation next to the original, with the new name "Accepted: Invitation: [Original Meeting title]". Calendar seems to suppress this invitation, but it doesn't extract the acceptance details for the invitee who sent it.

I was so irritated by this collapse of a simple but essential collaboration tool that I tried Fantastical 2. Its approach was worse: when you tried to drag the ICS over, or double-clicked it, it didn't suppress it. Instead, it added the new event called "Accepted: Invitation: [Meeting title]" next to the original – and then re-sent the invitation, with the new name, to all recipients. If they responded, it would create a new meeting called Accepted: Accepted: Invitation..." Massively unprofessional and embarrassing.

So my theory is that Apple has hacked this problem by suppressing duplicate events that start with "Accepted: ", but haven't got around to sorting out the extraction. It doesn't seem that hard.

Plug-In, anyone? I'd pay money to get reliable meeting notifications.

This answer may come a bit late, but actually, just until today, I was having the same problem as other users have described: after accepting invitations, they seem to be ignored by Calendar. But what really happens is that they are stored in the Exchange calendar. I enabled the Exchange calendar in "Calendar -> preferences" and voila.

It's not the most straight-forward way of doing things, but at least I am not missing more meetings now.