Option to see supplier and customer email addresses Merged

I have posted this previously and it has 17 votes and no update. Please can we have the option to see email address on customer and supplier main screens i.e. have it as a visible column option. As I cant do this at the moment what is the best way to get a list of all my supplier and customer email addresses off the system so I can email them all at the same time? Can anyone tell me? Thank you in advance