My iMessages won't deliver to one person?
I have a iPod touch fifth generation and have been using it for iMessage for about a year now and up until last night I didn't have a problem with it sending messages. I was discussing something with this person and then I suddenly didn't get a reply from them. This morning I went to text them again but my the message would not deliver, it would simply zip through the sending process and give a red exclamation point and it said not delivered. I kept retrying and resetting my iPod but it would not work. I really want to get in touch with that person so what could I do? Is it something with their iphone or my iPod? All of my other messages are delivering fine and that is the only contact I can't get in touch with. Thanks 
They're probably not connected to wi-fi. Try sending it as a text message. To do this, tap and hold on the message.
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