Understanding opens

[WilliamK568]

I have a large difference between "unique opens" and "all opens."  The last campaign it was almost double.  I cannot believe that many people opened the email multiple times.  Can this be explained by someone forwarding the email and then the forwardee opens it?

[William_A · Accepted solution]

Hello @WilliamK568 ,

This can be based on a number of factors. Contacts that predominantly use iPhone mail apps and similar iOS apps that will just auto-track those elements, contacts that forward their emails, and contacts whose domains / security programs "open" the emails and "click" all the links inside prior to delivery are all situations that could end up providing false-positives for unique opens versus all opens.