Is Your Email Landing in Spam? Find Out in 60 Seconds
You’ve spent an hour writing the perfect email. The subject line is great. The content is relevant. You hit send and... nothing. No opens. No clicks. No replies.
Because your email never made it to the inbox. It’s sitting in spam folders across the country and you have absolutely no idea. SpamBarometer tells you exactly where your emails are going and why.
Why Your Emails End Up in Spam
It’s rarely about the content. Most email deliverability problems come down to technical setup that nobody told you about.
Your authentication is broken. SPF, DKIM and DMARC records tell email providers that you’re who you say you are. If they’re missing, misconfigured, or conflicting, your emails look suspicious.
Your content triggers spam filters. Certain phrases, formatting patterns, and HTML structures set off alarms. Your sender reputation is poor. If your domain or IP has a history of spam complaints, bounces, or low engagement, email providers remember.
What SpamBarometer Does
The features that make a real difference.
Email Authentication Validation
Checks SPF, DKIM and DMARC records. If any are missing, misconfigured or conflicting, SpamBarometer flags it and tells you exactly what to fix.
SpamAssassin Scoring
Your email gets run through SpamAssassin. You get a score with a rule-by-rule breakdown showing exactly which elements triggered flags and how many points each cost you.
Content Analysis
Examines text-to-HTML ratio, link analysis including URL reputation and redirect chains, image usage, trigger phrases, and subject line assessment.
AI-Powered Recommendations
GPT-4 reviews your full diagnostic and generates plain-English recommendations tailored to your specific email. Not generic advice — specific, prioritised actions.
How It Works
Sign up and get a unique test email address
We generate a unique email address for your test.
Send a test email from your normal setup
Send exactly as you’d send a real one.
Get your results within seconds
Full authentication check, SpamAssassin score, content analysis, and AI recommendations.
Fix and retest
Until your emails are passing with flying colours.
Free Features Included
Who Is SpamBarometer For?
Email Marketers
Who need to know their campaigns are actually reaching inboxes before sending to their full list
Developers
Setting up transactional email for applications who need to verify DNS records and authentication
Agencies
Managing email for multiple clients who need a quick, reliable way to audit deliverability
Business Owners
Who’ve noticed emails aren’t getting replies and suspect something technical is going on
Why Choose SpamBarometer?
Instant results
No waiting around. Send a test email, get a full report in seconds.
AI-powered insights
Not just scores — plain-English recommendations from GPT-4 tailored to your specific email.
Free to use
The core testing tool is free. No tricks, no trial periods.
Built for humans
You don’t need to be a DNS expert to understand the results. Everything is explained clearly.
Frequently Asked Questions
Common questions about SpamBarometer.
Stop Guessing. Start Testing.
Your emails are either reaching inboxes or they’re not. SpamBarometer gives you the answer in under a minute, with specific steps to fix whatever’s wrong.
SpamBarometer is built and operated by Hotline Labs Ltd, a UK software company.