What does the red “I” mean next to a text message on a Samsung verzion phone?

I just bought a new Samsung buzz with the Verizon carrier. When I tried to send a text today I looked in my “Sent” folder and there is a red “I” in the small box where there is normally a black checkmark or green arrow. What does this mean?

Related posts:

  1. How do you setup Text Message Signature on Samsung Solstice Phone?
  2. How do i make my blackberry curve not ring after I send a text message?
  3. I have a virgin mobile phone ( prepaid ) The phone is a kyocera. I can delete everything but the text message
  4. How can I change my voicemail receiving message on my samsung phone?
  5. How do I block text messaging on my Samsung phone?