Building up an email list for your blog/site is important for your site growth and also helps to increase your brand value and user engagement . This helps in more social shares and also your users would be waiting to hear from you . Your subject line of the email plays an important role in attracting subscribers to open the email . More is the Email Open Rate , more the chance of getting clicked . And if there is any product you are promoting in the email , then you can make sales from your subscribers .
So , it will bring Traffic and also income from your blog . You should take care that your emails should not disturb or irritate your users i.e, you should send a maximum of 1-2 email per day else your subscribers might unsubscribe from your list .
Here is an infographic on How To Build Trust With Customers In Your Email List :