New Outlook won't let me add my outlook email account.

I'm having same issue. I can add other accounts, but not ***@outlook.com. The account is used without problems in Mail, but yesterday Mail stopped sending mail ((

My approach now is to build some redundancy into my personal use of IT, a bit like having two bank accounts and two credit cards so that if one route stops working then I have an alternative. I was forced onto the new Outlook when I changed my laptop recently for a Windows 11 system as my 10 year old laptop was struggling. As I have a Yahoo account from about 20 years ago, I have downloaded the Yahoo mail app from the Amazon store to give access to my other email providers which works OK. I am keeping Outlook for my Hotmail account until Microsoft sorts these problems out over the next couple of years.

My primary email account is with Optimum Online. I have an Outlook account, which I needed to set-up the computer, but have never used it for email. What happens in my case is that whenever I attempt to email, the preview wizard (i.e. Try New Outlook) automatically takes me to New Outlook, which is set-up for the Outlook account, rather than the Optimum account I actually use. I can't toggle the preview wizard off. When I try to toggle it, it takes me to "Welcome to New Outlook", which is precisely what I don't want.

Within New Outlook, it shows under my Outlook account, that I have also have an Optimum Online account (and shows the correct email address). However, when I attempt to add the Optimum account, New Outlook insists that either the account doesn't exist or that I have entered the address incorrectly. I simply clicked on the address they already had which was correct! Neither will the system allow me to sign in using my PIN. When I abort the "Add Account" process (which is a dead end), the wizard "helpfully" takes me to a screen that will allow me to SET-UP Outlook 2016. Given the fact that it was already set-up and has been working fine for years, this is utterly maddening!!! I want access to my old account. As it is, this rollout preview has rendered me incommunicado as far as email at the height of the holiday season. I can't email, nor can I place orders that require the use of my email address. What a total trainwreck! I want absolutely nothing to do with New Outlook! It has saddled me with a major problem at exactly a point in time when I need things to smoothly and efficiently.

There's another issue here as well when you think about the bigger picture. Think about what this process did. This "preview" automatically set-up users into a proprietary Outlook email platform. Simultaneously, it effectively closed them out of competing email platforms as a result of a broken "add account" function. I paid my Optimum bill today and asked if others were experiencing the same problem -- they were. While I'm not a lawyer, I don't see how this debacle doesn't end up in court.

I was having this problem. By the way, I like Outlook new way more than the regular desktop Outlook. It easily syncs with Google account including calendar and contacts than the Outlook desktop app. It seems there that it is even unable to add a calendar event in Outlook and have it go to your Google Calendar.

But anyway, the solution that worked for me is on here (though not the first page where I saw this solution: New Outlook 365 on new Windows 11 - cannot add Outlook.com account - Microsoft Community :

"In other words your Office account is a Microsoft account with a Gmail address as the login.

The @outlook.com address should be the primary alias for the account."

In other words, you need to make the hotmail/outlook email the primary alias for the Microsoft account. Once I did that, no problem adding hotmail account to New Outlook!

Having the same issue. My Microsoft account is identified by a GMail address. I *only* want to add my Microsoft Calendar to Outlook. I have gone through the full Microsoft login prompts, and it still gives the same error message. I uninstalled Outlook and went back to the Calendar app, with no intention of reverting back over; not until Microsoft can prove they have this fixed.