AWeber - AWeber is an Email marketing software that's easy to use. Send email newsletters & autoresponders and deliver top notch emails.
MailChimp - MailChimp is the best way to design, send, and share email newsletters.
GatorMail - GatorMail is an email marketing platform from the communicator, founded in 2006 which features the ability to launch dynamic and mobile accessible email campaigns.
Campaign Monitor - Email marketing software built for designers and their clients to run successful email campaigns.
Yodle - Yodle is a leading local online marketing company with 50,000+ local business customers.
Mailjet - All-in-one email service provider that provides maximum insight and deliverability results for both marketing and transactional emails.