Your contacts will use many different methods to read your emails, from desktop software, to webmail services, to mobile devices. These are email clients and the Email Clients Report will help you keep track of which ones are the most popular.
If you find that your list includes a large number of mobile users you might need to re-evaluate the goals and call-to-actions of your campaigns to be more appropriate for these recipients.
This chart shows which general types of email client were the most popular: Desktop, Webmail, Mobile, or Unknown.
These charts offer a deeper level of reporting on the email clients being used, with each type of client expanded to show specific software, webmail services, or mobile devices.