Changing the email associated with my Xbox?

The closest solution to your problem I could find would be
this.

Hello GrungyKnight637,

I understand that you want to change the Email Associated with your Xbox Live Gamertag. To make the transition easy and painless you should contact Xbox Live Customer Support at
1800-4MY-XBOX. They will be able to help assist you on recovering your GamerTag and changing the email associated with your Xbox Live Profile.

If you figure out your own information, here is a link to change your email associated with your Xbox Live Profile.

Click here -> "Change Email Address Associated with you Xbox Live Profile"

Xbox Live Ambassador

To change the email associated with an xbox account: http://support.xbox.com/en-US/my-account/microsoft-account/change-email-sign-in-for-microsoft-account

Im trying to add my son’s email ending in @hotmail.com to his Xbox. Previously it was mine ending @hotmail.com.

I’ve gone to add his email address as an alias then remove mine.

Firstly, it won’t allow me to because it says “this email is part of a reserved domain” and secondly if I remove my email from his Xbox account that’s not going to stop access to my personal Microsoft account is it?

It won't let you add an already existing Microsoft email as the primary alias. Thats normal and there isnt any way around that.

If you remove your email from the xbox account then YES it WILL stop your access to it forever.

Per https://support.xbox.com/en-US/help...nt/change-email-sign-in-for-microsoft-account

Warning When removing an email alias that’s connected to a Microsoft domain (such as @Outlook.com, @Live.com, or @Hotmail.com), that email is completely deleted from our systems and can’t be used to send or receive emails. It won’t be available for use again as an alias on another account. Microsoft doesn’t recycle email addresses, so it can’t be reclaimed at a future time.

Thank you for your reply.

So until the end of time, my son has to use my hotmail account to sign into his Xbox!?