Using the New Outlook for Mac for personal email and calendar
I am experiencing the same problem with drag and drop from Outlook to FileMaker v.21 database container field on macOS. It worked absolutely fine, dropping a .eml file directly into the FileMaker field, but now I have to save to Desktop then drag from the Desktop to the FileMaker field.
The suggested solution to 'enable drag & drop' <Outlook Preferences > General > Enable drag and drop> isnt even an option any more.
I can drag and drop from Apple Mail without any problem, but it seems Microsoft have de-featured in their latest update :(