Email and SMS Workflow Testing

Mailinator allows Developers and QA Testing teams to automatically test their SMS and Email workflows like 2FA verifications, sign-ups, and password resets with trillions of inboxes at your fingertips. Whether you do Manual Testing, use an API, or a framework like Selenium, Cypress, Playwright, or Puppeteer - Mailinator will close the loop on email/SMS testing.


Mailinator is Your Private Message Routing System

QA Testing Teams and Developers around the globe use Mailinator to route email and SMS messages with an ever-growing set of features, including webhooks and our API. 

Mailinator chart of technical features

Application Features

Mailinator offers a robust feature set to ensure that your email and SMS workflows remain intact and operational.

Quality Assurance

Utilize Mailinator to perform your QA testing on your email delivery systems, without risking sending to a real-life audience.

Email Receipt Testing

Verify that you bulk email delivery services are working as intended with Mailinator’s public inbox.

Load Testing

Test the resiliency of your email systems by performing load testing in a safe, development environment with Mailinator.

Email Interactions

Transform how you communicate with customers by utilize our platform to develop and test email and SMS interactions.

Mailinator's Free Disposable Email

Mailinator still offers a 100% free, public disposable email system. You can use any address and check those public inboxes by entering the public inbox in the field below.

Mailinator Subscription Plans

Verified Pro



with Verification
  • Our Free plan for a single user looking to gain efficiency for automating the testing of their workflows with the benefit of a private domain and access to our API



Per Month
  • An ideal plan for a small team looking to gain efficiency for automating the testing of their workflows with the benefit of a private domain and access to our API.



Per Month [Starting At]
  • Enterpise plans are custom built for your unique needs. This plan can accommodate high volumes, custom features, custom terms, or bespoke onboarding support.

Recent Blog Posts

Asking ChatGPT to analyze a Mailinator SMTP Log

We asked ChatGPT to analyze a random Public Mailinator SMTP Log. It gave some pretty impressive results, especially since the SMTP Log in this format is simply formatted for humans, not machines. (The Mailinator API allows you to get and SMTP log formatted in JSON) Analyze this SMTP transaction – explain anything interesting: 0ms SOCKET_OPEN […]

Feature Update: Advanced Routing Rules

We’ve just added some big improvements to Mailinator’s Routing Rules. There are new conditions! You can flag emails based on To: , From: , Subject: , and the IP address from which it was sent. Here we’re setting up a rule to automatically click the links in any one-time-password test emails. (assuming your OTP tests […]