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Mailosaur Reviews & Product Details

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Pricing

Pricing provided by Mailosaur.

Starter

Starting at $9.00
Per Month

Business

Starting at $80.00
Per Month

Mailosaur Integrations

(4)
Integration information sourced from real user reviews.

Mailosaur Media

Mailosaur Demo - Email testing
Mailosaur provides a reliable way to automate and verify every email your application sends, reducing test flakiness across your CI/CD pipeline.
Mailosaur Demo - SMS testing
Mailosaur makes it easy to test OTPs, notifications, and transactional SMS flows with speed and accuracy.
Mailosaur Demo - Email previews
Mailosaur lets you preview emails exactly as users will see them, helping you catch layout issues before they reach production.
Mailosaur Demo - Authenticator / MFA
Mailosaur automates verification of OTPs and MFA logic, ensuring your authentication workflows behave consistently in CI/CD.
Mailosaur Demo - API keys
Mailosaur uses secure API keys to let QA teams automate message retrieval, OTP extraction, and end-to-end communication tests.
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Mailosaur Reviews (19)

Reviews

Mailosaur Reviews (19)

4.6
19 reviews

Pros & Cons

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Pavel P.
PP
QA Engineer
Small-Business (50 or fewer emp.)
"Effortless Email Testing with Mailosaur—It Just Works"
What do you like best about Mailosaur?

What stands out to me is the effectiveness and simplicity. We have experimented with various tools for handling emails in test automation, particularly for OTPs and 2FA, and Mailosaur has consistently been the easiest to use—it just works. I also appreciate the generous trial program, which makes it straightforward to create a functional proof of concept. This, in turn, is easy to present to the team and management for final approval. I also like the python library that has helpful methods for extracting the codes and links without manually parsing the email structure. Review collected by and hosted on G2.com.

What do you dislike about Mailosaur?

I honestly can't think of any drawbacks. If I had to mention something, it would just be a lighthearted observation: my colleagues often joke about the product's name. Review collected by and hosted on G2.com.

Verified User in Banking
UB
Enterprise (> 1000 emp.)
"Seamless Automated Email & SMS Testing for QA Teams"
What do you like best about Mailosaur?

its an excellent platform for automated email and SMS testing, especially valuable for QA and development teams. The website is user-friendly, making it easy to set up projects, manage test inboxes, and access messages. Features like real-time message capture, search, and detailed message inspection streamline the process of validating email content, links, and attachments. The documentation is clear, and integration with popular test frameworks is straightforward. Overall, its website provides a seamless experience for managing and automating communication testing, improving test reliability and efficiency. Review collected by and hosted on G2.com.

What do you dislike about Mailosaur?

its main drawbacks are its pricing for higher usage tiers and occasional delays in email delivery during peak times. Some users may find the API documentation lacking advanced examples, and the UI, while functional, could be more modern. Additionally, there are limitations on attachment size and message retention, which may not suit all testing needs. Review collected by and hosted on G2.com.

Verified User in Banking
UB
Small-Business (50 or fewer emp.)
"Effortless Email & SMS Testing with Seamless Automation"
What do you like best about Mailosaur?

Mailosaur is highly effective for email and SMS automation testing. It simplifies the process of capturing, inspecting, and validating messages in test environments. The API integration is straightforward, and the dashboard provides clear visibility into test communications. This makes it easy to automate end-to-end scenarios and ensure reliable message delivery and content verification. Review collected by and hosted on G2.com.

What do you dislike about Mailosaur?

Mailosaur can be expensive for larger teams or projects with high message volume. The message retention period is limited, which may require frequent cleanup or data export. Some advanced features may require additional configuration or are only available on higher-tier plans. Integration with certain frameworks could be improved for more seamless automation. Review collected by and hosted on G2.com.

Azri M.
AM
Senior QA Engineer
Small-Business (50 or fewer emp.)
"The one email platform for testing"
What do you like best about Mailosaur?

I like the simplicity of the design applied in Mailosaur. Work-wise, I love Mailosaur as it allows me to create multiple inboxes with different domains, but manage them all under one access and one view. Another thing I like about Mailosaur is its capability to integrate with familiar test automation tools like Cypress and Playwright. This allows tests which require email integration to be much easier. Review collected by and hosted on G2.com.

What do you dislike about Mailosaur?

Experience-wise, I don't have any issue with using Mailosaur. However, since I am using one provided by my employer, I am unsure of the cost. All I can say it must be a good product and service as my employer continues to renew the services year to year. Review collected by and hosted on G2.com.

Verified User in Information Technology and Services
UI
Small-Business (50 or fewer emp.)
"Effortless Email & SMS Testing with Seamless API Integration"
What do you like best about Mailosaur?

Mailosaur makes it incredibly easy to capture and inspect emails/SMS messages sent from staging or automated tests. No manual inbox juggling—everything is centralized and API-driven. Review collected by and hosted on G2.com.

What do you dislike about Mailosaur?

Many users feel Mailosaur’s pricing becomes expensive as testing volume increases, especially for small teams or startups. Review collected by and hosted on G2.com.

Verified User in Internet
EI
Small-Business (50 or fewer emp.)
"Intuitive and Easy, But Pricing Could Be More Flexible"
What do you like best about Mailosaur?

It is very easy to use and everything quite intuitive. Review collected by and hosted on G2.com.

What do you dislike about Mailosaur?

Their pricing strategy, I don't need 500 test emails per day for my business yet, but 50 is not enough. Review collected by and hosted on G2.com.

Alexander L.
AL
Software Engineer
Mid-Market (51-1000 emp.)
"Easy to use and works well"
What do you like best about Mailosaur?

It is easy to set up and works well. Provides APIs to easily use it in your end to end tests. Review collected by and hosted on G2.com.

What do you dislike about Mailosaur?

Don't really know. Haven't tried any competing products. I guess it could be cheaper or more seats be available in each tier. Review collected by and hosted on G2.com.

NG
Senior Quality Assurance Engineer
Marketing and Advertising
Small-Business (50 or fewer emp.)
"Good tool for testing that provides dedicated phone numbers for SMS testing and mail authenticator"
What do you like best about Mailosaur?

Mailosaur is helping me to provide phone no. to test sms alerts, order, login codes, Signup otp, Booking confirmation and more and mail authenticator helps generate one time passcodes. Review collected by and hosted on G2.com.

What do you dislike about Mailosaur?

The UI is really smooth and learning curve is minimum for this software. Even a beginner can get hold of there easy to use process and adapt very quickly. Review collected by and hosted on G2.com.

Verified User in Automotive
UA
Mid-Market (51-1000 emp.)
"Powerful email and SMS testing service for app developers specially"
What do you like best about Mailosaur?

It's very easy to start using it, but if you can insert code and have sone technical skills it can get very deep and bring good insights.

Very cheap to start, even to just see how mails are received in different inboxes can be much more expensive in other solutions. Review collected by and hosted on G2.com.

What do you dislike about Mailosaur?

SMS testing is not as cheap and easy to start as emails. It just does what it does, you can't build or improve your mails here, it's just for testing and getting insights. Review collected by and hosted on G2.com.

Verified User in Marketing and Advertising
UM
Small-Business (50 or fewer emp.)
"Not good enough"
What do you like best about Mailosaur?

My experince with mailosaur is not so good, our use case is we sent marketing emails to our subscribers but before active our campaign we need to test all link and attachments. In this case i think mailosaur is not usefull because why should we pay when all these features are available in free tools. Review collected by and hosted on G2.com.

What do you dislike about Mailosaur?

Not helpfull all tese features are available in free tools Review collected by and hosted on G2.com.

Pricing Options

Pricing provided by Mailosaur.

Starter

Starting at $9.00
Per Month

Business

Starting at $80.00
Per Month

Enterprise

Contact Us
Per Year
Mailosaur Features
Deliverability Testing
Dashboard
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