Five Ways to Ensure E-Mail Provides a Positive Customer Experience

5. Learn from testing. Run simple A/B tests, gauging such factors as subject lines, the time of the day the e-mail is sent, the effect rich media has on an e-mail and other factors that can affect open rates.

You can access the entire whitepaper by clicking on this link: http://www.responsys.com/downloads/white_papers/Responsys_eMarketing_Engagement.pdf .