Integrate email warmup into your product with Warmup Inbox

Want to quickly add an email warmup feature to your product and delight your customers with better email deliverability? Then Warmup Inbox is the answer.

Partner benefits

Why work with Warmup Inbox

Fast implementation

You can integrate Warmup Inbox into your project quickly using our API, allowing for faster time to market and quicker delivery of value to your users. This provides a seamless experience while boosting efficiency in your processes.

Take advantage of our network

With Warmup Inbox, there's no need to build your own network of inboxes. You'll have access to our network of 30,000+ real inboxes, making your email warmup process far more scalable than if you were to build it in-house.

Outsource the complexity

Email warmup is a complex process, but with years of experience, we've mastered it. Let us handle the complexities, so you can avoid the hassle and focus on what matters most to your business.

Flexible pricing

We have a range of pricing options to suit your needs. If you would like to discuss the best option for your business, you can request a partnership consultation.

Request a partnership consultation
Built on our API

A REST API your engineers will actually like

Everything in the Warmup Inbox dashboard is available over the API, so you can embed warmup natively in your product instead of bolting it on.

Create and connect inboxes, start and pause warmup, pull placement metrics, and manage templates, tags, and plans. JSON over HTTPS, API-key auth, and a documented request and response for every endpoint.

  • JSON over HTTPS
  • API-key auth
  • 120 requests/min
  • Full inbox lifecycle
  • SMTP, IMAP, and OAuth
  • Placement metrics

Interactive reference, a Postman collection with Node.js and Python snippets, and a machine-readable OpenAPI document, backed by a public API status page.

Example request
$ curl https://api.warmupinbox.com/v1/inboxes \
    -H "x-api-key: YOUR_API_KEY"
200 OK
{
  "items": [
    {
      "inbox_id": "inbox_GM5i7HCSJ9bMN10O",
      "status": "running",
      "type": "google",
      "score": 98
    }
  ]
}
Case study

Partners who have integrated Warmup Inbox

Check out our case study about how Leadspicker saved 2 years of development by integrating Warmup Inbox directly into their platform.

Read the Leadspicker case study
~2 yrs
of development effort saved
Ready when you are

Add email warmup to your product

Start with the 7-day free trial, book a demo, or talk through partnership pricing on a consultation call.

No credit card needed