One of the most challenging aspects of e-mail marketing is mailing list development.
In fact, of all the questions we're asked by thousands of our small business customers, the one we hear most often is "How do I get a bigger e-mail list?" 
Each case is unique but, in general, we favor an approach that strives for bigger and better lists to produce the highest return possible for e-mail marketing campaigns. 
Here then are some tips you can use to build your own robust list of qualified recipients.