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turboSMTP is a global SMTP services that provides outgoing mail server guarantees, with secure SMTP relays. The service includes a SMTP API that can be used by application developers to integrate with their current setup. With turboSMTP your application can send emails through a trusted and authenticated SMTP relay service to ensure deliverability of your applications transactional emails. If something goes wrong you can always use the 24/7 support provided by turboSMTP, via tickets, live chat or phone.

ActiveCampaign is an all-in-one marketing platform that gives you email marketing, marketing automation, and CRM in a unified experience. ActiveCampaign allows you to send newsletters and messages targeted to each contact’s interests to make sure that your campaign feels genuine. The CRM provides email and sales automation that is tightly integrated with your email marketing list, where you can manage pipelines and update deals on a customer basis.

FreshMail provides a surprisingly easy to use, surprisingly functional email marketing solution, With FreshMail, email marketers and businesses can get up and running in a matter of minutes. So that they can focus on what matters, building their email lists and connecting with their audience. Out of the box, FreshMail comes with pre-made responsive email newsletter templates that can be used instantly. While also providing simple tools to customize your newsletters and opt-in forms, according to your brand requirements.

Amazon SES (Simple Email Service) is a transactional email service platform. Amazon SES provides an easy, cost-effective way for you to send and receive from your own email address, domain or web application.

A set of powerful APIs that enables your application to send, receive and track transactional emails effortlessly. Mailgun provides a global infrastructure and industry expertise that helps you get your message across to the right person at the right time. The service is trusted by over 150,000 businesses including giants like Microsoft, MIT, NHL and Lyft.

A transactional email platform from the email service provider MailChimp. Mandrill can be used to send transactional emails from web applications and third-party service. An API is provided by Mandrill that makes it east to integrate your application to the Mandrill platform.