When it comes to deciding how to craft that perfect subject line, there appears to be really only one area to avoid: the subject line of 60 to 70 characters. Marketers refer to this as the “dead zone” of subject length. According to research by Adestra, which tracked over 900 million emails for its report, there is no increase in either open rate or clickthroughs at this 60-to-70 character length of subject line.
This rule might sound like bad news for your email marketing campaign, but it can actually improve your open and clickthrough rates. Limiting your subscriber list to just those who specifically asked to join you will ensure only the most interested people are receiving your messages. This maximizes the chances that you'll convert readers to qualified leads as a result of an email send.
Personas provide a multi-dimensional method of targeting. They’re based, as the name suggests, on a projected persona for each customer ‘type’. Get it right, and personas can help you enormously in both predicting behaviour and personalising your communications. Personas are a powerful technique, and they’re increasingly used to improve the usability and customer centricity of communications.