What are the common limitations in tracking email open rates?
Tracking email open rates primarily relies on the use of a tiny tracking pixel. When the recipient's email client retrieves this pixel, the email is marked as opened. However, this method has several limitations. Firstly, if the recipient has images turned off, the pixel won't load, and the email won't be counted as opened. Secondly, some email clients and security software block tracking pixels, leading to inaccurate open rate data. Lastly, this method doesn't account for users who read emails in plain text format.