Using Classic Outlook on Windows for personal email, calendar, and contact management
First-day occurrence of the same problem, without any updates or upgrades or changes of settings of anything on my PC within the past two days. Both in replies to messages or in newly created messages. Contrary to the official MS advice, I turned the format to HTML (from Rich Text) - and the file attached as usual (instead of that F-word) icon in the body of the message. Hope this may help some of my fellow sufferers. BTW the latest MS update of BIOS, some three days ago, changed a number of settings in Word, had to reset them - although they stayed ticked off as before! Had to untick, and tick them off again, and press OK. Outlook worked OK though after that BIOS upgrade, this occurred without any previous warnings today.