study study Yesware study most likely to get a response Research from Yesware Saturdays and Sundays might well work reports study Yesware points to data Yesware reports Yesware Yesware https://www.yesware.com/blog/best-time-to-send-email/ research from Yesware https://www.yesware.com/blog/best-time-to-send-email/ 500,000 sales emails reports Yesware points to data A survey points to data 500,000 sales emails