Doppler Relay Alternatives

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.

Open Source

Mandrill is a new way for apps to send transactional email. It runs on the delivery infrastructure that powers MailChimp.

The #1 email warming service to improve your deliverability by generating realistic and meaningful engagement to your emails. Easy-to-use solution to help you land in the main inbox instead of the spam folder.

Visit website paid $19.5 / Monthly (Pro)

Innovative online Email Marketing solution to manage your contacts, create & send your newsletters and track your results. More than 80 000 clients. Best prices and attractive features.

Ariticmail is a transactional email delivery API for applications and enterprises.

Smartech is a AI-powered Cross-channel Marketing Automation & Analytics Suite. It helps marketers and product managers LISTEN to and ANALYSE consumer behavior, and execute hyper-personalised campaigns to retain and engage users (CONVERSE).

Scale your business email & marketing messages with Amazon Simple Email Service (SES), a cost-effective and reliable cloud email service. Sign up today.

Open Source

RealTime Email provides email relevance by enabling marketers to respond to each recipient’s personal context.

Email platform for product, marketing and engineering teams

Elastic Email is an all-in-one email delivery platform for both marketing and transactional email.

Postmark is the easiest and most reliable way to be sure your important transactional emails get to the inbox. Simply & reliably parse recieved email to JSON for your webapp.

Open Source

 SMTPProvider offers SMTP server with a mailing software for mass promotional & transactional emailing.

You can use SendGrid via SMTP or our simple to use Web API. Understand how best to utilize SendGrid.

We make it easy to send emails triggered by user behavior. Build, measure and improve your emails to activate and retain users