My Campaign Dashboard show different numbers than Smart Lists for that same email

[Anonymous]

Hi,

We set an email campaqign to our newsleter, and in addition we have created a smart list to locate the leads opened the email.
The campaign Dashboard statistics shows a higher number than the smart list we have created.
Dashboard resaults = 166
Smart lsit resault  =144
The smart list target "opened email" "newsletter email"

Any idea where that difference can come from?

p.s. already tried the "forwrd to a friend" filter as well.

Thanks

[Josh_Hill13]

It may show unique opens vs. all opens. Not 100% sure about that.