How to Setup Outlook on an Iphone. How to Add Outlook email to a iOS Device This article is for setting up your email account only. Download and install the Microsoft Outlook app from the Apple App store. Click the link below: Microsoft Outlook iOS Tap the Outlook app to Open. If it's your first-time using Outlook for iOS, enter your full email address, then tap "Add Account". Then, enter your Core4ce account password and tap Sign In. If you'd like to add another email account, tap Add. Otherwise, tap Maybe Later. You may want to tap Allow to turn on notifications from Outlook. Swipe through the features and you're now ready to use Outlook for iOS! Your Inbox with your emails will be displayed.