Automate your email spam testing with MailReach’s easy-to-integrate API.
Ensure your emails stay out of spam folders and improve your campaign success rate with MailReach’s Spam Test API—simple, fast, and powerful.












Simple, automatic, and reliable spam testing. Just plug in and test.
Easily add MailReach to your workflow. Our simple REST API is ready to go with detailed docs and support.
Automatically test your emails for spam triggers, content issues, and sender reputation concerns.
Instantly get results with recommendations to fix any spam-related problems, so your emails can land safely in inboxes.
Apply the fixes, optimize your email strategy, and send with confidence knowing your emails will pass the spam test.
Why MailReach Spam Test API? Because inbox placement shouldn’t be left to chance.



Tailor spam checks to fit your needs, and stay ahead of any deliverability issues.

Get a spam score and actionable insights into your inbox placement. So you can find and fix issues before they become problems.

Get scores that truly reflect your inbox placement. Don’t settle for a vague score based on unreliable tests. Know exactly where your emails land, with MailReach’s balanced mailbox distribution across providers.

Add our API to your existing setup with minimal effort, and use MailReach within your software.

No more spam surprises. MailReach spam test API gives you the full picture, fast.
Comprehensive spam tests
Check for content triggers, sender reputation, and key factors that could land your email in the spam folder.
Automated at the frequency you need
Schedule spam tests to run automatically at intervals that fit your needs, ensuring continuous optimization without manual effort.
Actionable insights
Get immediate feedback with detailed insights and actionable recommendations. Learn exactly what to fix to improve your email deliverability.
Easy integration
Use an API quick to integrate with your platform, so you can start testing and optimizing fast.
Seamless monitoring
Continuously track your email performance and stay ahead of potential spam issues.
Fast-growing businesses use MailReach's to improve their email deliverability.
“We’ve tried various tools and MailReach has definitely been the best for a number of reasons. They’ve really put so much thought into how spam filters work and are continuously adding features that none of the competitors are even thinking about to improve the product. I am seriously impressed and glad to be a client of theirs!”
“That’s simple, MailReach has helped us multiply our cold emails open rates x2. It has became our life insurance. Their deliverability guide is a gold mine too.”
“We’ve tested many solutions and MailReach is definitely the most efficient email deliverability tool. MailReach helps us raise and maintain the deliverability of 20 email accounts. A great deliverability booster.”
“As a cold email expert, I always recommend using MailReach to maximize the reputation of an email address / domain. MailReach combines complex algorithms and email best practices to offer a very efficient deliverability solution.”
“MailReach is the most effective and user friendly cold email deliverability tool. Within a few weeks, we’ve seen great improvements on our outreach campaigns.”
Flexible pricing for every campaign.
Check out our pricing calculator to see which plan fits your email testing needs.
Pay for the volume you need, and scale as you grow. Whether you're sending a few emails or managing large campaigns, we have a plan that works.
Email deliverability questions? Ask the experts (that’s us).
- The warming activity and content is meaningful, human and subtle, yet super effective. Google and Microsoft suggest smart replies on our warming emails.
- Unlike our competitors, we don’t include the same word or code in all subject lines of our warming emails.
- MailReach follows all email providers’ rules.
Emails in the inbox, sales in your pocket. It’s that simple with MailReach Spam test API.

