Automate tests you never thought you could
No repetitive tasks, no cluttered inboxes, no time wasted.
Mailosaur allows you to automate time-consuming email and SMS tests, like OTPs and password resets, so nothing gets missed.


Transform end-to-end testing in minutes, not days
Set it up once and test the entire flow - from the moment a message is triggered to when your user acts on it. Create an end product you can rely on, ensuring your users never run into broken or missing messages, all without those repetitive and time consuming manual checks.

Test what actually matters
Logins, password resets, and MFA flows are critical touchpoints that deserve full testing. Mailosaur tests your most important interactions, from secure authentication to transactional emails, so you can trust your users will receive all communications as intended.



Stay in sync
Collaboration is the key to ensuring a great end product, but communication takes time. Empower your team and easily stay in sync by giving them access to every message and all test results, in one simple dashboard.

Generate previews within CI/CD
Previews don't have to be separate from your workflows; our Enterprise plans allow you to automate preview generation across countless devices, email clients, and even light and dark modes to ensure all of your customers are getting the exact message you're aiming to send.



But what would happen if...?
Simulate real-world scenarios, from out-of-office replies to server errors, and trust your product is ready for all possibilities. Uncover hidden issues without the leg work.
Don't just take our word for it
Getting started with Mailosaur proved to be remarkably easy and convenient, paving the way for a seamless transition into a more automated and efficient testing framework.
Mekin Orun, Manager of Software Quality Engineering, Domino's

Take the pressure off
You shouldn’t have to write scripts for bounced emails or dig through cluttered test logs. Mailosaur makes it easy to:
Easily organise tests
Create new email addresses for every test, with no set up or configuration required
View results
See every test result in one simple, intuitive dashboard
Empower your team
Give every teammate their own inbox and virtual device to work independently
Frequently asked questions
Our documentation pages will show how quick and easy it is to integrate Mailosaur with your existing stack.
There are specific guides for popular test frameworks as well as for our official API client libraries.
Yes, we will work with you to build a solution tailored to you and your team's needs, which may include things like access to phone numbers in any of our supported countries, extra seats, high volume SMS capabilities and hands-on onboarding along with support throughout.
Reach out to our team in order to discuss the possibilities.
Yes. You can start with a 14‑day free trial to explore Mailosaur on your own.
If you’d prefer guidance, you can also book a demo to discuss your specific use case, whether that’s marketing email QA, automated transactional testing, or authentication workflows, before making a decision.
Absolutely! We have a number of customer stories available on our website, ranging from startups to huge industry-leaders, with more added all the time.
To start with, why not take a look at Department for Education, Domino's Pizza, or OakNorth Bank.
Ready to get started?
Book a live demo with our sales team, or dive in independently
Start automating your email and SMS in minutes with your free trial.









