How do we keep record of email openings?

Usually, it is known if a subscriber has opened a mailing thanks to a transparent image that is displayed when the subscriber opens the email.

However, there are cases in which this system cannot determine if an email was opened even if the subscriber did it *:

• if the subscriber receives campaigns in text format
• if the subscriber has disabled the display of pictures by default from their e-mail client
• if you open the email from an e-mail client that cannot display images
• if you disabled by mistake the option to track openings when scheduling your sending

* Acrelia News implements alternative methods to account email openings even if images are disabled or cannot be displayed.