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.

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

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.

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

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

SMTP2GO is the scalable, reliable email deliverability solution. Worldwide servers, a robust API, and powerful reporting set us apart. Try our free plan!

Use our powerful Email APIs to deliver all your business critical emails on time and to the Inbox. We are the world’s only ESP that gives cashback on emails opened.

All-in-one email service provider that provides maximum insight and deliverability results for both marketing and transactional emails.

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.

MessageGears is a hybrid enterprise multichannel marketing solution built for data-centric, large volume businesses.

Email marketing service and software with full creative control and top deliverability. Design, send and track professional campaigns. Send for FREE now!

Deliver your app and website emails on time and to the inbox. Trusted to send 25% of the world's non-spam email. Email delivery for companies big and small.