For the last few months I have been getting an increased amount of spam / markeking emails from companies wanting to sell the school services or products. Even had a few random calls last week. At the moment I just delete them and ignore. But want to know if anyone actually bothers replying to these kind of cold call emails telling them to not email again.

If so, do you just say your not interested - or do you go down the route of saying you wont do business with them if they contact the school again randomly?