When Are You Sending Your Emails?
Posted by AdEasel in Canvas on 2/18/2013 at 12:00 AM
GetResponse has analyzed 21 million messages to track open rates & CTR. The results: sending messages between 8am-10am and 3pm-4pm can increase average open rates & CTR by 6%.

http://blog.getresponse.com/best-time-to-send-email-infographic.html