www.constantcontact.com (Not Free - But 60 Day Free Trial): Constant Contact email services blends your email campaigns and your social networking campaigns into a single matchless and easy-to-use service. They provide an email marketing service with 400+ customizable templates and the option to insert text or your own HTML code into the emails. you also get a 60-day-free-trial with this email marketing service.
Most companies will prefer a third-party solution since not only will these be more capable, they'll also be supported more effectively by related back-end apps, such as mobile device management (MDM) platforms and mobile-oriented endpoint protection solutions. You'll also have an easier time pushing a third-party platform out to registered client devices, though some hosted email providers can help with this step.
And that leads us right into understanding service pricing and packaging. The email marketing services we reviewed range from about $5 per month to as much as $20 per month for a range of features. Many email marketing plans include unlimited email sends each month and bill you based on the number of subscribers. If you have a small list, then look for a company that offers a free plan, a low-cost plan for several hundred subscribers, or even a pay-as-you-go plan. On the flip side, many of these services also offer high-volume plans with up to 100,000 or more contacts. Sometimes this requires a custom plan that has to be arranged directly with a sales rep. If you're willing to commit, then look for the companies that offer discounts if you pay yearly rather than monthly. A few offer also money-back guarantees.