So does YMail have anything to do with this -- if you were logged into Yahoo and visited the bad page then Evil, Inc would still get your Y and T cookies, right

So does YMail have anything to do with this -- if you were logged into Yahoo and visited the bad page then Evil, Inc would still get your Y and T cookies, right? I have received "Check out this cool link" emails from friends who use Yahoo mail, but I assumed that it was just scraping their Yahoo address book...