I can't send a message to two people. Why?
You didn't tell us exactly how you tried, exactly what happened, or if this is SMS, MMS, or iMessage. Why?
Do you have: Settings > Messages > Group Messaging > ON?
On my iPhone 5, I have SMS, MMS and Group Messaging turned ON. When I put two phone numbers in the address field, the message is "Not Delivered." When I send the same text in two separate messages, it goes through. Huh?
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