I have verizon and when I sent a text message, it usually has a check mark icon meaning thats it been sent.
Well today i sent the same text message to four different people.
There is a red "I" next to in place of the check mark
but when I read the sent message, it says that the text has been delivered.
Help?
I sent the same text to four different people, three of which were verizon.

So under those three peoples' names, it says that it's been delivered.
The one person who doesnt have verizon, doesnt say anything under their name.