“Use the subject line to concisely describe what you are providing or promoting, this will increase the click to open rate, meaning people will be more likely to open the email and follow the call to action after reading the content.”

@endel_19

If you want your email campaign to be successful, you need to make sure the subject lines in your emails are coherent. The subject line should easily inform the reader about the content of the email, but in a way that makes them want to read more. Describe, provide, promote, and provoke.