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.

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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 email and sms workflow interactions

Application Features

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

Mailinator Email Workflow Testing

Quality Assurance

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

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Email Receipt Testing

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

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Load Testing

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

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Email Interactions

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

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Mailinator's Free Disposable Email

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

Mailinator Subscription Plans

Verified Pro

$

0

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
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Business

$

79

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.
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Business Plus

$

159

Per month
  • Designed with QA Testing and Development teams in mind, Business Plus offers higher volumes and features like additional users, SMS, and multiple private domains.
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Enterprise

$

495

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.
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Recent Blog Posts

The Essential Role of Temporary Email in OTP, MFA, and Workflow Testing

In today’s digital landscape, businesses rely heavily on secure and efficient email communication. From user sign-ups to transaction confirmations, email plays a critical role. However, testing these email flows—especially for One-Time Passwords (OTP), Multi-Factor Authentication (MFA), and automated workflows—can be time-consuming and fraught with challenges. This is where temporary email solutions like Mailinator come in. […]

Mailinator API Update

We’ve been busy adding a few quality-of-life features to our Messaging API that we think you’ll love!Here’s a quick list – read below for more details on the Mailinator API update. 1. Scheduled Delete Schedule deletion of any message you retrieve with the API with &delete= 2. Cursor Pagination New way to paginate through your messages […]

Common Pitfalls in Email Receipt Testing and How to Avoid Them

Email receipt testing is a critical component of software quality assurance, ensuring that transactional emails—such as password resets, order confirmations, and notifications—are correctly received, formatted, and functional. However, many teams encounter common pitfalls that can lead to undelivered, misformatted, or non-compliant emails. In this post, we’ll cover some of the most frequent issues in email […]

A Deep Dive into a Mailinator SMTP Transaction Log

Did you know that Mailinator provides a detailed SMTP transaction log for all inbound (public and private!) messages? If you use Mailinator to test email delivery, these logs can help you understand exactly how (and how quickly) your emails are moving from the sending server to the Mailinator inbox. Here’s why it’s useful: Do you […]

Streamline Your Software QA with Mailinator: The Ultimate Tool for OTP, MFA, and Email Receipt Testing

In today’s fast-paced digital world, ensuring the reliability and security of software systems is paramount. Whether you are launching a new application, updating existing software, or testing critical functionalities like One Time Password (OTP) and Multi-Factor Authentication (MFA), the success of your product depends on rigorous testing. That’s where Mailinator comes in—a versatile software development […]

The Essential Guide to Testing Email Workflows with Mailinator: A Developer’s Best Friend

Introduction:When building software, seamless email functionality is crucial, whether it’s for user signups, notifications, or password resets. But ensuring your email workflows function as intended, without spamming your team with test emails or cluttering your inbox, can be a challenge. That’s where Mailinator comes in—a developer-friendly tool designed to simplify testing email workflows in staging […]