There are some legal issues in email marketing too as in any other walk of life. These should not be ignored and taken well into account while your email marketing to avoid getting into unnecessary troubles.
Here are some mistakes made by email marketers pointed out in this video, when getting new subscribers. Go through this video and avoid those mistakes to make your new subscribers returning customers.
Here are some truly useful steps and techniques of bulk email marketing services which will potentially lead you to bring more and more attracted customers to your website, turning your email marketing efforts into sales and eventually increasing your ROI.