Can’t get iCloud to work on new Outlook mail

I had the same problem and found the solution.

Do the following:

1. Go to https://appleid.apple.com/ and create a password for outlook.
   Tutorial until min.1:40 : https://www.youtube.com/watch?v=Uv1PQpfHJBI
2. Go to https://www.icloud.com/ and open the mail app. I haven't had a email yet which ended on "******@icloud.com"
   If you also don't have the @icloud.com ending, you need to make one now.
3. Now go to the New Outlook and add an account using your just now created "******@icloud.com" email and your created password.

Thumbs up if it did help.

I really can't believe they are forcefully migrating everyone to the new app that has this kind of an issue. And they have iCloud accounts listed as supported 😓 It has been more than a month now, still no fix. These kind of things just kill trust. I feel like Microsoft is just forcing everything down people's throats. This happened with Bing, Edge, OneDrive, their Co-pilots, this new Outlook, and more. And they are pushing incomplete, low quality products. If I didn't need to use Windows for work I would be so happy.

Hello, for what it's worth, I have had exactly the same problem with "the new outlook" for months!

I simply think it's just currently impossible to add an iCloud account to the new Outlook, and it's really a pity!

I'm heavily happy Mac user and as much as I love Mac OS, I'm not a great fan of its native mail app. I have tried several apps and all of them are "incomplete". On the new Spark, I cannot open an email in a new window which means I cannot have several emails opened at the same time.

On Mail Spring, the formatting options on rich text editor are extremely limited... it's basically B I U numbers and bullet lists. For the font, you have the choice between 5 fonts and size is "extra small" to "extra large". Of course no table or anything.

So, as I'm paying a Microsoft 365 subscription, I have thought to finally move to outlook.

My iCloud account is working fine on the older outlook but as soon as I try to switch to the new Outlook, it just disappears and displays an error message when I try to reconfigure from there.

How is it possible that Microsoft is ignoring this issue?

Same issue here. Can't setup the icloud account in new Outlook. My app-password genrated on appleid.apple.com is not accepted.
I am also using another 3. part app. This is working just fine. Looks like "new Outlook" has a bug :(

For what it’s worth, I contacted support today and had a chat with a technical expert from Microsoft who told me they are well aware of the issue and will get it fixed “shortly”… he told me that “it should be fixed by the end of the month”… I have doubts but you never know !