Exchange calendar in Calendar App – Sequoia bug

[fronesis]

RESOLVED: the problem occurs when your exchange account has multiple email aliases, or the default email address is different from the MS exchange log-in address. The solution is to make your exchange default email address the same as the login address.

Is anyone successfully doing the following: using the built-in Mac Calendar app to access an Exchange calendar, and having calendar invites work properly?

For me, and for a bunch of other people here, every invite sent through the Exchange calendar shows up on the Mac calendar as *read-only*. You can't accept or decline the invite properly, and you cannot delete the event.

I have the same exchange calendar working fine on calendar app on two other Macs running MacOS 14.x, but it does not work on Sequoia. I've tried everything to fix, but it seems like a bug. I'm a bit shocked that this kind of basic functionality would be broken in November.

 

[fronesis]

Still looking for anyone running Sequoia and the built-in Mac Calendar app who has it working properly with an Exchange calendar???

As far as I can tell, invitation events just don’t work on Sequoia; they come up read-only, and it’s possible to change your status (go from accepted to declined) or make the event go away. Just seems like a major bug for an OS that’s been in beta since the summer.

 

[Phrogz]

RESOLVED: the problem occurs when your exchange account has multiple email aliases, or the default email address is different from the MS exchange log-in address. The solution is to make your exchange default email address the same as the login address.

I'm super glad you've found a solution. Can you please clarify what you did, exactly, to fix it? Where did you change the "exchange default email address", and what did you change it to?

All macOS users at my Exchange-based company are seeing this same issue, and I'd love to be able to resolve this without waiting for Apple to fix.

(Also, how certain are you that this is a Sequoia-specific bug?)