Unable to add Outlook.com to my MacBook Air running macOS 26

If you are trying to add Microsoft Exchange, Outlook or Hotmail to the Mail app it won't work. Some people in Apple have been made aware of it.

It's the first time that someone has brought up the calendar integration that I have read, but I suspect if you can't add any to Mail then they won't work in other apps as well.

At present your alternative is to use only your Apple ID account within Apple apps or use the Outlook app from Microsoft app on the app Store.

My problem was solved not to use the authenticator app when signing in: choose texting the verification code. Now apple mail is syncing correctly on my MBA and on my iphone.

If you web-search "microsoft email accounts and tahoe" you will see lots of similar reports.

If Apple uses the quantity of reports of an issue to triage bug reports for priority in fixing, add to the evidence using this: Feedback - macOS - Apple

TIP: You Can Now Add Your Outlook and Hot… - Apple Community

It was fixed by either Apple or Microsoft sometime late yesterday and it was server side, not with in the Mail app.

Good point - no Authenticator app setup on problem account, just text/email code/2FA.

I wonder if setting up auth app fixes it - will try that.

Also - saw this article - seems like it is related but not totally sure.

Apple Mail Outlook Sign-in Issues: 90% Failure Rate << Apple :: Gadget Hacks

I am seeing this on iPhone as well, it is more widespread than just Macbook.

Newer iPhone 15 with iOS 26, (Before that it was also broken on 18.5).

When trying to add Outlook account it prompts for email / pass and then instead of adding it skips back to the email/user prompt again. Essentially a loop.

What is strange - the same account working fine on Mac.

Most people realize it when emails not synching - then they go into Settings > Apps > Mail > Accounts and Outlook account shows "Re-enter password" but then you just get the loop.

Workaround is just to download Outlook app from App store (for email at least)

But then you don't get Contacts in iOS which screws up your Messages etc. if you are not using iCloud contacts (like me).

Anyway - hoping they fix this soon.

I and my family had no issues on iPhones, iPads, or Macs, either on 18.x or 26.x.

One difference may be that the accounts are configured to push authentication requests to the authenticator app. No password entry is required to log in at all, just 2fa.

What happens when you try? It works just fine. Not sure where AlWeir got the idea it didn't work.

Glad it works for you.

Sorry. "it just won't work" is not specific enough to address.

What year and macOS are you using?