Yes, that will work too - but don't you need to have godaddy do that for you? If so, you'll have the same potential delays - you need to wait for them to remove the domain so you can add it to microsoft side - then you need to add the domain at microsoft fairly quickly to avoid bounced messages.
Well, I thought I had done enough research and prepared properly to make this transition but alas, what a mess. I have my backed up file (pst), so that's all good. I phoned GoDaddy yesterday morning and the support tech seemed to understand perfectly what I wanted to do, I had asked that he remove the custom domain from the email plan there and then cancel the Office 365 plan they had (related to that same custom domain). The tech said he could do that and it would take place immediately. I told him to proceed. Next, I opened my premium outlook.com and attempted to add the custom domain in it as an alias. It verified that I was entitled to control the custom domain but somehow added it to outlook.com not as an alias but as a connected account. In outlook.com, when I click on the premium button (diamond at top) and then click on personalized email address, it says "Your Domain" "Your custom domain is licensed through GoDaddy" and below that it says Outlook has successfully connected your custom domain xxxxx.com. It has a button allowing me to remove the domain. Below there, it shows "Members up to five) and then lists my name and below that, my custom domain and to the right is a link with an image of a trash can and it says "Remove address".
I am able to log into outlook.com using either my outlook.com email or my custom domain email. However, if I send my browser to outlook.com and then try to sign it, when I log in using the custom domain email, a pop-up from Microsoft says "It looks like this email is used with more than one account from Microsoft. Which one do you want to use? The first choice says "Work or school account Created by your IT department
xxxxxx@xxxxx.com. The next area I could select says "Personal account Created by you
xxxxxx@xxxxx.com (both email addresses are the custom domain ones). If I click on the "Work or school account" then it takes me to a godaddy login, which no longer works because, of course, that service was deleted on the GoDaddy end. I'm thinking there may be some setting that didn't get changed or removed somewhere.
I spent almost the entire day yesterday on chats and mostly the phone with 5 different microsoft support techs. That turned out to be a complete waste, with me ultimately being redirected from one to the next and then back to the same department I started at.
If I try to add my custom domain as an alias, it says "you can't add a work or school email address as an alias..." This is neither, I've been retired for 20 years.
Any thoughts?