Building a Linkedin email marketing list out of normal email marketing list is much more beneficial compared to traditional email marketing. When we do email marketing though some bulk mail marketing software, It may go into spam or it may not be noticed by the recipients as promotion emails are not considered seriously by many recipients. Linked is a network of businessmen and professionals who seek good relationships at workplace. Each one haves different motives with linkedin. It can be for sales, marketing, job, professional help, public relations or what ever they find useful with linkedin. So an email from linkedin would not be ignored or neglected as it is delivered by a reliable source. Or sure the linkedin emails would never be gone to spam. Is that all an effective campaign needs? Yes. This makes the difference. Once you try it. You would feel the difference.