The Mailing Overview report offers open environment tracking. This means, based on where the open occurred, you can see tracking by email clients, reading environments, and client platforms.
Below are some of those terms and their definitions:
Email Client: represents the Email Clients or Browsers where an email is opened. "Other" means a Browser is populated, but not one we can identify. Some examples are: Windows Live Mail and Thunderbird.
Reading Environment: represents whether the email is opened on a mobile device, using a desktop application (i.e. Outlook), or using a web Browser.
- "Desktop" is an application, like Outlook or Thunderbird.
- "Web" is Browser based.
- "Unknown" represents no value returned from the the browser or email client because it's an environment that doesn't conform to standards.
Client Platforms: represents what type of device is used to open an email.