News
Security standards you can trust: Mailosaur is now SOC 2 Type II attested
Learn how SOC 2 Type II provides independent validation of the controls and processes that help protect your data.
Blog
Explore the Mailosaur blog for expert insights on email & SMS testing, automation, and quality assurance
Best practices
How to track your email testing, and why it’s so important
Why tracking your email testing is a necessary but also beneficial practice, and how it can benefit your team when done correctly
Best practices
Why you should be paying for your email testing service
Learn more about the scope of free email testing tools vs their paid counterparts, and scenarios they're both best suited to
Tutorials
Email accessibility: a practical guide to WCAG 2.2
A simple guide to the key principles of WCAG, why they're in place, and how to test your emails for them.
Best practices
The future of QA, and where AI fits
With the future of QA under scrutiny, in part as a result of the rise of AI tools, let's talk about what could feasibly be coming.
Tutorials
What your email HTML reveals (before you send)
See how you email's HTML is the best clue to how it'll render for different users
News
New to Mailosaur: Accessibility and compatibility checks for email
Introducing Mailosaur's newest features; testing your emails for accessibility compliance and compatibility with email clients directly from the HTML.
Mailosaur vs Competitors
Choosing the best email preview tool for you in 2026
Rising prices or limited functionality forcing you to look for a new tool? Take a look at our side by side comparison so you can make an informed decision.
Best practices
The biggest hidden complication in email and SMS testing
Learn how to ensure privacy, data protection, and secure workflows with compliant test environments for QA and automation.
Best practices
The 6 checks you need to make before hitting send on an email
Eroded brand trust, poor customer experience, and damaged team morale are just some of the impacts of a broken email being shipped.
Automation
How to test OTPs automatically (without breaking the user experience)
One-time passcodes are a fundamental part of authentication, but how can you test them in CI/CD?
Best practices
The most common email rendering issues in 2026 (and how to fix them)
Designing HTML emails that render consistently across inboxes remains one of the biggest technical challenges in digital communication.