Improve your deliverability with our FREE email tester.

Email Spam Checker and Heat Map Prediction

Step 1: Send an email to the testing address below.
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Key Features

Blacklists

Blacklists

Know right away when your domain - or your IP address - has been blacklisted, so you can fix the problem quickly.

Blacklists
Accessibility

Accessibility

Ensure everyone can read your emails with full accessibility checks. Best tool for marketers, designers and developers.

Accessibility
Email Preview

Email Preview

Make sure your email looks perfect for every recipient, with an instant preview for every device, every platform, and every OS.

Email Preview
Eye-Tracking Prediction Heat Map

Eye-Tracking Prediction Heat Map

Create more impactful campaigns and get better results with accurate data on where subscribers are looking and how they’re reading your emails.

Eye-Tracking Prediction Heat Map
More Features
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Sender Policy Framework

Sender Policy Framework

Prevent spoofers from sending spam from your domain with verification that your emails are coming from a genuine IP address.

Domain Keys Identified Mail

Domain Keys Identified Mail

Avoid being “binned” or blocked with a DKIM key to show contents of your email haven’t been tampered with.

DMARC

DMARC

Verify your emails are secure with a record of information a recipient should receive, and what they actually receive.

Reverse DNS

Reverse DNS

Reduce the risk of being blocked by an Email Service Provider with Reverse DNS to show your IP address is correct.

Broken Links & Short URLs

Broken Links & Short URLs

Instantly check for bad and broken links in your emails to avoid being caught in spam filters.

Domain Suffix & Age

Domain Suffix & Age

Check whether Email Service Providers see your domain as trustworthy and improve your open rate.

List Unsubscribe Headers

List Unsubscribe Headers

Spam complaints are the #1 factor that will hurt email deliverability. Include an easy unsubscribe mechanism.

Html Body Best Practices

Html Body Best Practices

See where your HTML body can be improved with a full email spam test for best practices.