Messaging icons help????

[Ty3230]

I have some icons that I dont recognize. Both are next to individual messages, not a thread of texts
The 1st one is an envelope with a green "i" in a small circle in its lower right corner
The 2nd one is a white rectangle with the lower right corner missing, like it was folded back, with a gray smaller rectangle filling up the top half of it. It also has three short vertical stripes coming up from the lower left edge.

Please help?

 

[danaj]

What kind of phone do you have? Also, are you using a third party messaging app? Is there anyway you can post a picture?

 

[Ty3230]

I have an HTC Thunderbolt, and I am not using a third party messaging apps. My texts are one-on-one, and I use the message system that came with the phone.
Sorry, cant post pics, shots of phone are too blurry (unless you want to tell me how to screenshot ha)

 

[chanchan05]

HTC screenshot should be pressing the home and power button at the same time.