From experience, the best way to keep a reader enticed is just stick to the facts. If you’re not adding value you’re not adding time to the clock of your readers attention. Draw the reader to want to finish the thoughts you’ve written in the email. If you have a call to action strategically place it halfway through so they see what you want them to do. Readers are surviving or thriving and we want them to do the latter. Make the Email specific to your audience with custom details, add CTAs that will bring them back, or forward the message for extended engagement.