Connect to External Email App
Allow me to send email thru external email app but keep records in Teams. Connect it to the Win 10 Mail interface that comes on Win 10.
In the Win 10 Mail, add an 'Archive in Teams' option, so all my Team exchanges are archived even if not talking with a Team member. You could add an 'ad' at the bottom of the external email message inviting the recipient of the external email to join Teams for free, and increase market *********** exponentially!