My Microsoft Email Account now refuses to connect to my Apple Mail app on my New Macbook Air, with Taho 26.0.1

I resolved my issue. What I experienced and found as mentioned above may be true but depends on the settings for the outlook.com security set for the account. I turned off everything on my account except a simple password. Then I was able to set up outlook.com using the Exchange option.

Have you tried using the Outlook app in the Appstore. It's free.

iOS and macOS Tahoe are different. They don't always line up when you are trying to use a feature in one of them and try to use the same feature in the other.

Like in Mail on the iOS platform, you can use a Outlook email address in Mail but at present on the Mac there isn't an option for it unless you try using the "Add Another Account" option

Try the instruction below. There is no guarantee that it will work.

• Click the '+' button to add a new account.
• Choose 'Other Mail Account...' and click 'Continue.'
• Enter your email address and name, then click 'Continue.'
• Select 'IMAP' or 'Exchange' based on your Outlook account type.
• For Exchange, choose 'Microsoft Exchange' and enter your email and password.
• For IMAP, use incoming server: outlook.office365.com and outgoing server: smtp.office365.com.
• Click 'Sign In' or 'Continue' to authenticate your account.
• If connection issues arise, remove and re-add your Outlook account.
• Use the automatic setup feature by selecting 'Microsoft
• Exchange' and entering your email.
• Ensure correct email address and password to avoid setup problems.
• Consider using the Outlook app for Mac if issues persist.

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

From what I have experienced and from my research, a Microsoft 365 Subscription is required. Free for one month. Basically it appears that free/personal outlook.com email is not supported in Mac Mail on Sequoia and Tahoe. The "free" Outlook app requires a MS 365 Subscription and the only way to access the outlook.com email is in a browser at outlook.live.com. If you have another solution or links correcting any of this, I am certainly interested.

Same issue here. My Mail on my MacBook Pro kept losing sync with my Exchange (actually MSN) mail account. For a while I could achieve a temporary solution by deleting and re-adding the Exchange account, but the last time I did that I could not add Exchange back again. It keeps reporting an authentication failure, although my credentials are absolutely correct. I CAN connect with Mail on my iPhone. The MacBook is on Tahoe 26.0.1, FWIW.

We really need a solution here, and I hope Apple can come up with one fast.

Thanks for the update on the problem. If you wish you pass on your concerns to Apple at Feedback - Mail - Apple

I do have the same problem. It started with the Mail app not syncing my outlook.com Mails anymore. I tried to remove the account and now I am not able to add it anymore. The web login window opens, but nothing happens. Then there is an authentication error.

Hoping this is a Tahoe problem. Hotmail works on my other OS devices. Getting same errors in past few days on my Mac as stated above. Glad others are seeing this too waisted hours on my end. Will wait for fix.

I tried these steps and they did not work. Continue to get unable to authenticate user name or password error. I want all my mail in the mail app on my Mac. I don’t want use the outlook app. This started with the last update for me. Hopefully this will be fixed soon.

My Exchange connection was able to be restored Oct. 7 at about 3:30 EST - that is, I could add the Exchange Internet account - and since then it has been spotty, losing synch every few minutes. I am afraid to delete the account again, because of the trouble I had for several days restoring it, but I am inclined to suspect that there is something amiss on the Microsoft end of things.

i have the same problem. can anybody solve the probleme? pls. i dont want use two apps for my mail.

It was fixed for me as of October 7.

How was it fixed?