Sendmachine Developers

Welcome to the Sendmachine Developer Platform. Here you can integrate Sendmachine into your application to send, track, and manage email using APIs, SMTP, webhooks, and powerful personalization.

Everything you need to integrate Sendmachine into your product is documented below.

🔌 REST API documentation

Use the REST API to manage contacts, send messages, control campaigns, and retrieve delivery and engagement statistics.

🔔 Webhooks

Receive real-time notifications when emails are delivered, opened, clicked, bounced, or fail.

🧩 Macros

Personalize emails using dynamic placeholders, conditional logic, and contact list fields.

✉️ SMTP Mime Headers

Control routing, campaigns, and tracking behavior using SMTP headers when sending email via SMTP.