i just setup my hotmail on my iphone and every time i click on it it sends through 5 old emails from my email that i've already read days ago on my laptop but are new to my iphone so therefore are unread, and it says i have 6000+ unread emails, but i just have 6000+ emails in my hotmail inbox which i've already read and not deleted, but my iphone is putting them through to my inbox as unread

how do i set it so it only sends through new emails that are unread?

pop3 btw.