cox to yahoo PP access

[hime3]

Cox email account transferred to yahoo successful. Can read all cox emails in Yahoo in browser.
Successful OAuth via Chrome.
PP not given access.
When I click Agree PP opens inbox showing:
This account must successfully log into the server before you can view its messages.
Can not discover how to login to server.
Old cox PP account is lined out.

[Jeff]

It should just need to successfully check for mail. That security feature was designed pre-Oauth2, though... Email me if it still doesn't work.