In iPhone 5 sending emails in yahoo mail end up in outbox with this error message(a copy has been placed in your outbox. The sender address was rejected by the server)
With new iPhone 5,sending emails in yahoo mail end up in outbox as unsentimental mail with this error message(a copy has been placed in your outbox. The sender address @yahoo.com was rejected by the server
iPhone 5, iOS 6.0.2