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.
MailChimp - MailChimp is the best way to design, send, and share email newsletters.
SMTPProvider - SMTPProvider offers SMTP server with a mailing software for mass promotional & transactional emailing.
Constant Contact - Constant Contact offers email marketing, social media marketing, online survey, event marketing, digital storefronts, and local deals tools.
Aritic Mail - Ariticmail is a transactional email delivery API for applications and enterprises.
Mailgun - A set of powerful APIs that enable you to send, receive and track email from your app effortlessly whether you use Python, Ruby, PHP, C#, Node.js or Java.