iOS9 unread emails
is there a fix that works for emails showing as in my inbox! I downloaded iOS9 and now have over 1000 emails showing on the icon. When I check the individual inboxes there are less than 20 in total. I have marked them all as read, no change. I have an iCloud account, a btconnect account, an exchange account and a gmail account all work fine before iOS9. Reading some of the other posts I have isolated the account that is causing the large volumes of "unread" emails by turning off each account in turn. The btconnect.com account is the problem account.
I Have turned off the iPhone 6, removed account, turned off and on again, re-entered the account and the same issue. Even done the same, turn off, and on again and then removed account again....... Still over 1000!
any workable solutions would be gratefully received.
iPhone 6, iOS 9, Unread emails that are read