After addressing a widespread outage that affected Outlook.com users worldwide on Monday, Microsoft has asked iPhone users to re-enter their credentials to regain access to their Outlook and Hotmail accounts via the default Mail app. After addressing a widespread outage that affected Outlook.com users worldwide on Monday, Microsoft has asked iPhone users to re-enter their credentials to regain access to their Outlook and Hotmail accounts via the default Mail app. Microsoft confir... [2251 chars]