Using Outlook for iOS in business environments for email and scheduling
Hello,
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In order to resolve your issue we would require more information. Let us know the following:
Since you mention that the Outlook for iOS (as well as Outlook for Android) screens differ from that which is shown on the Set up email on iPhone, iPad, or iPod Touch article, send us screenshots of the Outlook for iOS app which you see on your mobile device. Also, let us know where (at which step/s) do you get stuck while trying to setup/configure your IMAP account in Outlook for iOS as per the screenshots that you would post.
To capture and send us a screenshot follow the step as shown in the following Microsoft link.
Check the above and send us the information.
Thank you.