Microsoft needs to delete my old email address of ******@q.com; settings does not allow

If the old address is being used as a Microsoft account sign-in alias or recovery address, it must be removed from the Microsoft account settings rather than from Outlook app settings.

Use this path for a Microsoft account email/alias:

1. Go to Manage how you sign in to Microsoft or Edit account info.
2. Add the new address first if it is not already on the account by selecting Add email.
3. If needed, make the new address the primary alias.
4. Select Remove next to the old address.

Important:

• A primary alias cannot be removed until another email address exists on the account and is set appropriately.
• If Microsoft is still trying to send verification codes to the old address, update the account’s security info by adding a new verification method first, then remove the old email method.
• For work or school security info, this is done from My Account > Security info > Add method > Email, then delete the old email method.

If the issue is in Outlook on a device rather than the Microsoft account itself, removing the account from the app does not delete the actual email account. It only removes it from Outlook.

For Outlook.com and Microsoft account scenarios, the required fix is:

• add the new email,
• make it primary if needed,
• remove the old alias,
• then update/remove the old security email if Microsoft still uses it for verification.

• Change the email address for your Microsoft account
• Set up an email address as your verification method
• Change your email address in Microsoft Teams Free
• Remove or delete an email account from classic Outlook for Windows