Email Header Analyzer Trace, Diagnose & Fix Email Delivery Issues
Wondering why your emails aren’t hitting inboxes? Paste your email header and let Sparkle dissect everything from SPF/DKIM status to server response codes.
Don’t Guess Why Your Email Failed. Know.
Headers carry all the hidden details about how your email was sent, routed, and received. Use them to uncover issues blocking your email performance.
Trace Email Delivery Path
See how your message moved from server to inbox (or spam)
Verify Email Authentication
- Check SPF, DKIM, and DMARC results and failures.
Spot Delivery Failures
Decode server responses and routing delays in seconds.
What You Can Do With Sparkle’s Email Header Analyzer
Break down complex headers into clear, actionable insights.
Paste Headers. Get Results
No decoding needed just copy your header and click analyze.
Check All Auth Layers
Instantly verify SPF, DKIM, and DMARC success or failure.
Fix What’s Broken
We tell you what’s wrong and how to fix it no guessing.
Who Can Use Sparkle’s Email Header Analyzer
This is built for anyone serious about deliverability and transparency.
Founders & CEOs
Ensure emails from your domain pass authentication and reach inboxes.
Marketing & SEO Teams
Troubleshoot bounce issues or poor open rates quickly.
Growth & Ops Teams
Monitor deliverability for campaigns, sequences, and transactional emails.
Understanding Your Result
You’ll get a full delivery report showing the email’s routing path, SPF/DKIM/DMARC status, server responses, and any issues. Know exactly what failed and how to fix
How It Works
Getting started takes 30 seconds:
Copy Email Header
From any email client, copy the full header text.
Paste It In
Paste into the tool input box and click “Analyze Header.”
View Delivery Breakdown
Instantly get routing, authentication, and diagnostic results.
Turn Insight into Action
The Email Header Analyzer is part of Sparkle’s full email performance toolkit built for scale, speed, and clarity.
200 free email verification credits/day
AI-powered cold email workflows
Built-in CRM and multichannel outreach tools
Conversion-focused tracking and insights
Frequently asked questions
Everything you need to know about the product and billing.
It contains technical metadata showing how your email was sent, routed, and received.
SPF, DKIM, DMARC, message routing path, server responses, IP handoffs, and failures.
No. Paste the header and we decode everything into plain English.
Yes. Partial results are shown instantly. Sign up to unlock the full analysis.
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Join 1,000+ startups and scale-ups already powering their outreach with Sparkle.