While earlier in the year, email marketing campaigns performed best when sent on Thursdays, in Q3, emails sent on Friday are doing better, according to Yesmail. The Email Benchmark Report Q3 2016 found that 16.6 percent of emails sent on Fridays were opened, and 2.9 percent were clicked, with a click-to-open rate of 12.4 percent. According to the report, the highest conversion rate (4.5 percent) was found to take place on Saturdays.