I do remember when one of my colleagues asked me to find out a way to hide the Reply To All button on outlook message form or place it somewhere else than it’s regular location on new message form. I have no clue why did they want to implement this (don’t even want to know :-P) but I think I don’t have to work on this 🙂
MS Research has developed a addin for Microsoft Office Outlook which does the job. You can download this addin from here –> http://research.microsoft.com/en-us/downloads/60860f41-88ab-4bb4-8104-765feca9cfed/
Thought should be shared so if someone wants something similar to this they should be able to find it on the web.