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The best email API for Agencies

We understand the unique challenges agencies face and have designed a suite of features that simplify email receiving and sending across multiple customers. Get your system up and running quickly, easily manage individual accounts, and maintain full control over each project.

Get started with your next email partner today.

Inbound email to Webhook

Receive incoming emails via HTTP POST. Emails fully parsed are formatted as JSON, Multipart Form/Data or you can receive the full RAW email. You can even receive large attachments.

Send Email via HTTP or SMTP

Get perfect deliverability without having to lift a finger. Never lose track of where an email is or why your customers didn't receive it.

  • Easy to integrate

    CloudMailin is designed to be easy to integrate with your existing application. We have integrations for all the major languages and frameworks. Whether you're using SMTP or HTTP, sending email or receiving it, we've got you covered.

    email api frameworks image, rails, django, node, php, python, java, go, ruby
  • Secure, Reliable delivery from an Email Provider you can trust

    • Reliable

      With 99.99% uptime and our detailed insight you'll never be left wondering what happened to your email. Our dashboard gives a complete overview of the status of your inbound and outbound email.

    • Send millions of emails

      CloudMailin allows you to get setup quickly and then send and receive as many emails as you need.

    • Always secure

      Our custom email servers are secure, hardened and proven over 14 years. We'll even let you know which version of TLS encryption a client used when we receive email messages.

    world map showing global email deliverability and email sending
  • Receive your email via webhook

    CloudMailin allows you to receive email from any device, anywhere in the world by making a POST request over HTTP. The response will be formatted for you and ready to use on your server or in your application.

    Receiving email has never been easier.

    See a Demo

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  • Never worry about deliverability again

    CloudMailin handles your email deliverability so you don't have to. We make sure everything is setup to ensure that your emails hit the inbox quickly every time. CloudMailin provides SPF, DKIM and DMARC by default. We monitor it all so you don't need to.

    You can see every step of your email's journey in our dashboard and you'll always have the insight you need.

    email deliverability image, emails with checkmarks and one deliverability failure


Don't just take our word for it

CloudMailin has been instrumental in our growth at ExpressSteuer. The system is not only incredibly easy to implement, but also highly reliable and robust. What's more, their support team is simply amazing - always quick to respond and provide effective solutions to any challenge we encounter. We couldn't be more pleased with the service provided by CloudMailin!
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Andreas Santoro
CTO, ExpressSteuer
Thanks for the rock solid decade
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The product is perfect, feature rich, nice and intuitive UI and great support. It was really easy to integrate it into our application. It enables our application to receive inbound traffic, to give better support to clients and to expand our mailing options.
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Francisco (Kiko) R.
Head of Engineering,