If you need more and better leads from your email marketing, you have to discover where to emphasis your email marketing efforts to see the utmost accomplishment. You have to perform experiments with your email subject line.
Email subject lines dictate open rate of an email. For getting the best results, you need to craft minimum two different subject lines for your emails to check best open rates. According to Convince&Convert, about 33% of email recipients open their email based on the subject line alone.
In your future email marketing campaign, run A/B tests on subject lines to measure the effectiveness and get more leads!