Why do the messages not always show up with initials?

Sometimes messages show up with the Full Measure logo, but I can respond from the department thread. Who are those messages from?

 Those messages are most likely from us! When we build campaigns on behalf of your departments in our system, those messages go out with our avatar. The student doesn't notice a different, it's still from the department as far as they can tell. Only you can see a difference in the Full Measure interface. 

When you create a campaign in our tool, even if you send it from a department, the avatar that will show up in the thread will still be your initials because you are the one that made the campaign. There is no "department" designation in the avatar images. Again, the student does not notice a difference depending on who sent it, it only appears to be different in the Full Measure tool.