Randomly could not send emails through outlook. No amount of screwing with accounts or outlook files would resolve this. Then things would magically start worki

Randomly could not send emails through outlook. No amount of screwing with accounts or outlook files would resolve this. Then things would magically start working again for a time. Finally pinned it down to the wireless mouse. Still don’t know why, but if that specific model of Microsoft wireless mouse was plugged in, outlook wouldn’t send emails. Confirmed with another of this model mouse on a separate person’s computer.