Amazon SES - Scale your business email & marketing messages with Amazon Simple Email Service (SES), a cost-effective and reliable cloud email service. Sign up today.
Mailivery - Reach the Inbox, not the spam folder.
MailChimp - MailChimp is the best way to design, send, and share email newsletters.
Sidemail - The simplest way to send transactional emails. Sidemail makes sending transactional emails trivial, it's perfect for side projects, MVPs or the next big thing.
Constant Contact - Constant Contact offers email marketing, social media marketing, online survey, event marketing, digital storefronts, and local deals tools.
Postal - Open source mail delivery platform, alternative to Mailgun or Sendgrid