2ad7877c_y_the_Email_Experience_Council__Metric
[Definition] The number of messages displayed to a user. [Considerations] Counting open messages requires that a tiny image is downloaded from a central server. For several years, most email clients (Outlook, Apple Mail, Thunderbird) and webmail block images, especially those from unfamiliar senders. Plain text messages were never measurable. Highly unreliable. [Metric] 
Opened
S e n t
D e l i v e r e d
O p e n e d
C l i c k e d
R e a d
C o n v e r s i o n s
Official email marketing metrics defined by the Email Experience Council
Metric