Radar: Free Email Security Health Check by Mailprotector
Radar by Mailprotector is a free, easy-to-use email security health check tool that provides a comprehensive 360-degree analysis of inbound and outbound email protections—including TLS encryption, SPF, DKIM, DMARC, domain/IP reputation, and reverse DNS—delivers a security score akin to a credit score, and offers actionable recommendations to help MSPs and users identify and fix vulnerabilities within minutes.
The full email security picture. Free, in minutes.
Are you an easy target? Get a 360-degree analysis of your email security with a clear path to fix what's exposed.
Run an email health check in 3 easy steps
1. Start
Submit an email address and Radar will perform a series of inbound protection checks.
2. Reply
Reply to the inbound test message and Radar will check the outbound security posture.
3. Report
Wait a few moments and receive a security score report with actionable recommendations.
Unsure about your email security? We're here to help.
What Gets Tested
Eight checks, one complete picture
Radar was built to give MSPs a complete view of inbound and outbound email security factors at play.
It performs a series of checks to identify vulnerabilities including inbound and outbound TLS encryption, SPF, DKIM, and DMARC, domain/IP reputation, reverse DNS and email spy tracking.
✓Inbound TLS
⚠DKIM
✓Outbound TLS
✓Reverse DNS
⚠SPF
⚠DMARC
security score0
The Score
A credit score for email
After analyzing the email systems in question, Radar weighs the pros and cons and tallies them as a security score. Think of it like a credit score for email.
The higher the score, the stronger the security posture.
The Report
Everything you need to act on what Radar finds
A Radar report breaks down every check in plain English—what passed, what didn't, and exactly what to fix.
MSPs receive a clear, actionable summary that's ready to act on for existing clients or start a conversation with new ones.
Improve your score
We strongly recommend making the following changes to get a better score and improve the safety of your domain. Once you make these changes, run Radar again to update your score.
Critical
Setup DKIM for yourdomain.com
DKIM stands for DomainKeys Identified Mail and is used for the authentication of an email that's being sent. A DKIM record exists in the DNS, but it is a bit more complicated than SPF. DKIM's advantage is that it can survive forwarding, which makes it superior to SPF and a foundation for securing your email.
Critical
Setup DMARC for yourdomain.com
Domain-based Message Authentication Reporting and Conformance (DMARC) is a free and open technical specification that is used to authenticate an email by aligning SPF and DKIM mechanisms. By having DMARC in place, domain owners large and small can fight business email compromise, phishing and spoofing.
Understanding your score
Your Radar security score is based on the tests that pass or fail during the security check. These results are fed into the Radar algorithm to calculate your score. The maximum score is 850. The scoring factors are listed below.
- Factors
Max: 850
-
DomainKeys Identified Mail (DKIM)
-125
-
Domain-based Message Authentication Reporting and Conformance (DMARC)
-125
-
Receive email with (TLS) encryption
150
- Send email with (TLS) encryption
150
- Sender Policy Framework (SPF)
125
- Domain/IP reputation
100
- Reverse DNS
50
- Email spy tracking
25
- Total: 600
https://mspsolutions.email.security
Are you vulnerable to an email attack? Get your email security score and know if you're an easy target.
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Partner Benefits
Radar for Mailprotector partners
Radar is a free tool for anyone to use, but Mailprotector partners get added benefits.
Your brand, front and center
Configure a co-branded version of Radar on your own subdomain with a custom URL and your logo.
Built-in lead generation
Add an opt-in checkbox to your branded Radar page and receive a copy of a prospect's report to a customizable inquiry email address.
Radar in the field
Starting a conversation about email security isn't always easy. Run a live Radar scan at meetings, events, or tradeshows from any device and let the results do the talking.
From the Trenches
The perfect response to ‘I already have an IT guy’
We've had great success using Radar during discovery conversations. When a prospect doesn't receive a perfect score, it naturally opens the door to a deeper discussion around security gaps, risk exposure, and best practices. Instead of us pitching what might go wrong, Radar gives them something concrete to look at. We've used this approach with our last five prospects, and three of them have moved forward as new managed clients.
Nik Margulski
XTECHS
Frequently Asked Questions
How much does Radar cost?
Radar is completely free to use.
How often can I run a test?
As often as needed. Radar is useful any time changes are made to an email configuration, or as a regular health check. Down the road, we’ll add even more features to help you view the big picture of your email security over time, so stay tuned.
How is this different from tools like MX Toolbox?
Most tools check whether records like SPF, DKIM, and DMARC are present and correctly formatted. Radar tests whether they actually work in practice by sending a real email and analyzing a full delivery loop.
What security checks does Radar perform?
Radar checks eight key areas: SPF, DKIM, DMARC, inbound TLS encryption, outbound TLS encryption, reverse DNS, email spy tracking, and IP reputation. Each is scored and weighted toward a maximum of 850.
What does the score mean?
Scores fall into one of four categories:
- 0–399: Critical vulnerabilities that should be addressed immediately.
- 400–599: Several warning factors that need to be looked into.
- 600–749: Solid measures are in place, but there's still room for improvement.
- 750–850: You've nailed it and can now go brag to all your friends.
What happens to my email address?
It’s used only to run your security test. Mailprotector does not use it for marketing, does not sell it, and does not share it with anyone.
Radar surfaces the gaps. Mailprotector closes them.
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Zero Trust Email Security\
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Instead of chasing threats, Shield zeros in on the mail users want to receive. Everything else—malicious, suspicious, or unwanted—naturally falls away.\
Learn more 
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Painless Email Encryption\
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Wrap your subject in [brackets] and send. No apps, plugins, or passwords required on either end. Just as secure, but people actually like using it.\
Learn more
Ready to level up your score?
Mailprotector has the tools to fix every gap. Get a personalized walkthrough and see what a perfect score looks like in practice.