Transactional Email Software

Learn why more developers choose SendGrid for their email deliverability service to send transactional emails triggered by web apps. Get started for free

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

Create automated newsletter campaigns with an affordable email marketing solution

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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.

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.

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

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

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.

Identify & fix your email deliverability issues for free 👀

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

Take control of your transactional email. sendwithus is the missing tool for marketers to manage and optimize transactional emails.

Open source mail delivery platform, alternative to Mailgun or Sendgrid

Reach the Inbox, not the spam folder.

paid Free Trial $29.0 / Monthly (100 Emails a Day)

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