iMessage says "not delivered" but are being received?
A few days ago my iMessage stared acting up. When I send an iMessage it will instantly show that it has been delivered. But seconds later I will get a notification saying that the message has not been delivered. People are replying to the messages, indicating that they are receiving them. I have tried turning my iMessage on and off, and resetting my phone.
iPhone 5, iOS 7.0.4