Using Classic Outlook on Windows for personal email, calendar, and contact management
For the record, I have seen this issue occur when my friend and neighbor's Android device texted my wife's iPhone 7... She sent the same message via Messenger and there was no issue. It's doesn't seem limited to just Outlook for iOS but the least Microsoft could do would be to provide an adequate explanation and workaround. Unfortunately for us and their reputation they are doing nothing and just dragging their feet...