This document discusses the importance of email for healthcare professionals (HCPs). It provides data on the most common activities HCPs engage in on smartphones and tablets, with checking email being the top activity. The document then shares an example from Eli Lilly Belgium of a personalized email campaign sent to over 1000 HCPs in 2013 that included tailored medical content and links to additional resources. A customer satisfaction survey after the campaign found high engagement from sales reps and positive customer feedback. The document concludes with suggestions for what makes a good email newsletter, such as achieving high readership, providing useful information for patient care, and promoting brands in a supportive manner.