Feature

Reliable Email API built for developers & growth

Send, track, and manage emails with our powerful SMTP and HTTP Email API — engineered for deliverability, scale, and speed.

Trusted by companies worldwide

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Powerful tools for effortless integration

SendPost Email API simplifies transactional and marketing email delivery. Built for developers, trusted by growth teams.

Send Emails via SMTP or HTTP

Use your preferred method — whether it's SMTP for quick plug-and-play or HTTP API for full programmatic control.

  • Quick integration via SMTP credentials
  • Advanced JSON-based HTTP API for developers
  • Supports all major languages and frameworks
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High Deliverability Infrastructure

Emails land in the inbox — not spam. SendPost handles IP warming, sender reputation, and feedback loops.

  • Built-in IP reputation & warm-up support
  • Industry-best deliverability practices by default
  • Real-time bounce and spam complaint handling
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Scalable & Secure

Built to handle millions of emails daily with enterprise-grade security protocols.

  • TLS & secure credential handling
  • Rate limiting & abuse prevention mechanisms
  • Scale up effortlessly — no infrastructure bottlenecks
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How Email API works

Start sending within minutes. Integrate using our SMTP or REST API, monitor performance, and scale confidently.

1

Get Your API Credentials

Create an account, grab your SMTP or API keys from the dashboard — you're ready to send.

2

Integrate with Your App

Use our HTTP endpoints or plug into SMTP settings. We support Node.js, Python, PHP, Ruby, Java, and more.

3

Send, Track, Optimize

Track opens, clicks, bounces, and deliverability — all in real time via our dashboard and webhooks.

Frequently asked questions

Everything you need to know about SendX and email marketing

Can I send emails via SMTP?

Yes, SendPost supports SMTP relay. You can connect your email client or app using the provided SMTP credentials.

Which languages can I use to integrate the API?

Any language that can make HTTP requests — including Node.js, Python, PHP, Ruby, Java, and Go — works with the SendPost Email API.

Does it support bounce and open tracking?

Absolutely. Our dashboard gives you real-time insights into email delivery, opens, clicks, bounces, and unsubscribes.

Can I integrate SendPost with my own application?

Absolutely. SendPost is designed for developers. We offer a robust Email API, SMTP relay service, and SDKs in over 14 programming languages. Additionally, our Email Webhooks allow you to receive real-time event data directly in your application for seamless integration and workflow automation.

Do you offer a free plan or trial?

Yes, we offer a very generous free forever plan that includes up to 25,000 free emails every month. This plan is designed to give you the freedom to build, test, and fully integrate SendPost into your application without any cost or commitment. No credit card is required to sign up.

Still have questions? We're here to help.

Ready to Reach the Inbox, Every Time?

Join thousands of developers and businesses who trust SendPost's powerful API and infrastructure to deliver their most important emails.