Transactional emails

Reach inboxes when it matters most

Send system notifications to your contacts with confidence.

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Send with confidence

Get the benefits of our experience sending billions of emails globally.

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Send personalized transactional emails that reach inboxes, not spam folders.

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Customize your analytics with pre-built dashboards, export API, and more.


Read documentation guides, or contact our award-winning Support team for help.


Use custom tagging, whitelabeling, conditional content, and more.

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Globally Distributed Infrastructure

Featuring automatic feedback loop registration and dedicated IPs.

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Scalable Analytics

Get analytics in multiple ways, plus custom tags, A/B test capabilities, and comparative reports.

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Sending and Receiving Options

Utilize white-labelled click tracking, custom reverse DNS, rules engine, custom return path, and sub-accounts.

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1.79 Seconds

That’s the average time to delivery for top 3 ISPs, sent from our MTAs to the recipient’s email server.

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Do more with templates and conditional content

Create custom content with conditions to reduce your need for redundant templates, or use handlebars and merge tags. Build emails from scratch with the HTML template editor, or import your Mailchimp templates with a few clicks.

More features to help you create fast, personalized transactional emails

Start with API guides

Get started with documentation, guides, and knowledge base articles.

See guides

Inbound email routing

Use transactional API to manage your inbound email and POST to your servers.

Learn more

Hire an expert to help

Use our experts directory for anything you need to create and send emails.

Explore directory

Default sending options

Start with logical default configurations and change them later at any level.

Learn more
Transactional Email HTML Integrations Wrappers Mandrill

Integrations and Wrappers

Native integrations and wrappers for almost all platforms and frameworks.

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Get world‑class support

Get in touch with our award-winning Support team for troubleshooting.

Start Using Transactional API

Reach the inbox, not the spam folder.