Pitting the top email marketing services head-to-head. Campaigner and MailChimp are both rated 4.5 stars (out of 5) and both sport an attractive interface, a generous feature set, and are easy to use.

MailChimp is probably best known for its basic email newsletter services, but it has long offered a number of more advanced marketing tools; for example, one that allows its users to follow up with ...