This article covers updating your Outlook password on your iOS device (iPhone, iPad, iPod touch) after changing your domain password.
1. Tap on the profile picture at the top left of the Outlook app.
2. Tap on the Settings gear icon at the bottom left.
3. Tap on your account under Mail Accounts.
4. Scroll down and tap Reset Account.
5. Tap OK.
6. The Outlook app will close. Wait a few minutes and then re-open the Outlook app to try again.