"Not Opened Email" filter vs "Opened Email" filter with "is not"
Hello
I'm trying to resend an email to those who did not open it the first time around. I originally had 96 people on my list and 19 opened it. I have since added new people for a total of 564 leads. I want to send it to anyone who didn't open it the first time, AND the people who were just added to the list.
I am wondering the difference between these two filters, because each one is giving me different totals.
So i know that "not opened email" filter is correct - it gives me 545 leads:

But i would expect that this filter should give me the same #, but it gives me 86 leads:

Does the "Opened Email" filter with "is not" assume "was sent and did not open". Whereas the "Not Opened Email" filter not consider if it was already sent?
Thanks
Kasia