Using New Outlook on Windows for personal email, calendar, and contact management
Hi. I'm Brian and I'll try to help.
Who is your wife's email provider - that is, what follows the @ in her address? What happens when she tries to add her account to new Outlook? If she gets an error message, include it here exactly as it appears on the screen, but please mask any real address in the message so it's not public. If she logs into her mailbox with a web browser, does she see her old email?