I have read an article called google hack that search all email address from all company sites and email addresses but wait are that legal. I’m not sure. But there is another way that 100 % legal and will guide you to find the perfect telemarketing list. Still don’t understand about telemarketing lists you can find the answer in Wikipedia but I can resume a little telemarketing lists is like a marketing strategies usually trough a phone calls or an email address offering product and make a proposal to purchasing the our product.
For sure a web that I found not also offering common lists but also a mortgage mailing list. So I think if your company want to use a maneuver strategy to blow up your sell point this is a good way to try. Start in 1951 telemarketing is start to blow up and after that start to show many fraud telemarketing. But fraud is fraud and we must keep going the business.
In this way we need a communicative strategy with our consumer so we get their belief to purchasing our product. But, before that we must have the list first so why not you try the site that I found. Is worth with the price I think.