Email Subject Lines: 8 Principles for Improved Open Rates
ConversionXL
MARCH 10, 2017
Test your subject lines and measure the right metric. Of course, you’ll also want to be sure you’re focused on the right metric. Half way through 2015, MailChimp users had already sent 2,005 “dads and grads” emails. Also note how the trend started in 2014 and seemingly picked up in 2015. via MailChimp).
93 
Let's personalize your content