The only issue with Outlook on Iphone or Android is that it isn't yet secure. For example l, we cannot use it on our corporate email because the data are sent unencrypted. I believe MS is working on this.
Same here about the Iphones. My MS representative and my MS TAM both have Iphone 7 models. I tried a Iphone 6s for about a month and gave it back. Too difficult to use.
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