Email & SMS testing for any app, product or campaign
Improve quality and increase confidence with the number one customer communication testing platform.
Our Products
Everything you need to test customer communication
Email Testing
Create end-to-end tests that rely on email. Test account verification emails, password resets, email tracking, and more
Email Previews
Instantly see how your email will look to any recipient, no matter what email client they use, so there are no nasty surprises.
SMS Testing
Build text messages that work. Create end-to-end tests that cover identity verification, alerting, promotional messages and more
Build and test products that work!
Whether you're doing some exploratory testing, or plan to create a fully automated end-to-end test suite, Mailosaur will help you raise the quality bar!
Email and SMS testing API
Fetch, reply and forward email and SMS messages using a simple API, with official clients for all major languages and testing frameworks.
Create automated end-to-end tests to cover every aspect of your product or campaign.
Deliverability and Email Analysis Tools
Maximise the number of emails reaching your customers by letting our email analysis tools do the hard work and highlight any deliverability issues.
Create the perfect email, free of technical issues by using our issues reports.
Simulate real customer interactions
Customers can communicate in many ways with your applications including email and SMS. You want to make sure that these interactions keep working.
With Mailosaur you can simulate real-world scenarios, with phone numbers and email addresses that let you perform end-to-end tests of critical workflows.
Designed for Automation
Automate email & SMS tests with any framework
Automate email and SMS testing with Mailosaur, whether you’re working with Cypress, Selenium, Webdriver.io, Robot Framework or anything else…
Tools for any language
We offer client libraries for everything from Node.js, Java and Python to plugins for frameworks like Cypress.
Here to get you started
We have engineers on hand to help you get your proof of concept up and running in minutes.
Unlimited email addresses
Use any email address you want, with no code required
Use a unique email address for every test, build, team member, environment or any other use case you have. With Mailosaur supporting an unlimited number of email addresses that you can send to from anywhere.
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This is the easiest solution to test your emails and I can show you how it works in 5 minutes.