Iphone 6 has stopped receiving email
My almost new iphone 6 (1month old) has stopped receiving emails for one of my yahoo accounts (it still gets email for the other one). It will not bring in any emails. When I pull up email it is blank and says I have no email. I have factory reset the whole phone, reset network settings and deleted the email accounts and reloaded. Nothing seems to fix the issue. HELP
Windows 7