One of the first lessons that I learned about email marketing campaigns is to give sincere thought to how a customer perceives every component of the email, starting with the subject line. Media headlines grab your attention and get you to listen longer or read further. A meaningful subject line for an email offers the same punch. Subject lines should be relevant, interesting and genuine.
If links and looks are set, begin interacting with the page. Abandon it, adjust the window size, convert. Are error messages appearing when they’re supposed to (if, for example, you don’t input all the form’s required info)? Is your CTA button working? If you abandon the page, are you retargeted with ads? When you resize the window, does your landing page respond accordingly?