If you’re like most ecommerce businesses, you have a lot of email lists in your database: lists of emails you collected through special lead capture campaigns, lists of customers that made one purchase and never returned. And, the list goes on.

Some of these email lists are probably old and obsolete because you haven’t sent an email to them in months. Or, maybe you’ve been sending an email once every month or so. In any case, the trouble is that these lists don’t have any quality control or[...]