hi redranger, as you mentioned that a friend of yours would be purchasing emails and marketing through them - don't you think it would not be troublesome for him to handle so many accounts at a single point of time? Moreover it would be considered as spamming that is actually not a good practice. if he wants to market his business via emails then the best way would be to buy an email marketing software and use that for marketing, the advantage would be that he can ask people to subscribe and once they subscribe then you emails won't reach spam folder. Good Luck!