Nearly all mobile ecards are successfully delivered. However, every once in a while a wireless carrier can have an outage or a network overload that causes an ecard to go undelivered. Although this is rare, it can happen. Your recipient may have not opened the message from American Greetings because it came from an unfamiliar phone number. The two phone numbers that you would see your ecard come from would be either 440 373-7423 or 440 373-7422. You may want to reach out to recipient and advise them to look for the ecard, and then save these phone numbers to their contacts so they are sure to recognize our texts in the future.