Yahoo Email Item Count not matching emClient folder

I am adding a Yahoo email account to emClient. The item count differs in 2 places in emClient and with Yahoo Web Mail. Hovering over the inbox folder in emClient shows approx 41,473, in the properties window it shows over 61,427, hovering on the inbox folder in Yahoo Web Mail it shows 61,429. I need to know that all emails have been brought into emClient. How can I be sure of this?

emClient version 10.1.4588