Oops, there goes my blood pressure. The short answer is you can't because there are laws against it. You would be sending Unsolicited Commercial Emails (UCE) which is the official name for spam. You are only allowed to send marketing emails to recipients who have previously and knowingly opted-in to received them from your company. This is great for telling existing customers about offers and new products but no good for getting new customers. The long answer is, even though there are laws against it, nobody has ever been convicted of sending spam - maybe because spam is just annoying and there are actual threats out there for the authorities to concentrate on. It's therefore left to members of the email industry, like Arrowmail, to do their best to block spam, and we do a pretty good job. But assuming that you are a genuine company with a real product or service to sell which isn't a scam or a rip-off here is some genuine advice:- It seems to be acceptable to show unsolicited advertising to people when they are getting something in return: with commercial TV you get programs to enjoy, a magazine cover price can be kept low because of the advertising revenue, and search engines, social media and other free apps are funded by advertising. I can only think of billboards as a form of unsolicited advertising that is still considered acceptable which has nothing in it for the viewer, except sometimes perhaps humour. So, to get new customers, spend your advertising budget on these other forms of advertising and keep email marketing for retaining your existing customers.