Are your emails actually reaching the inbox?

Open rates dropping
Without an obvious reason
Campaigns underperforming
Even with good content
Customers missing emails
Confirmations, receipts, alerts

Send a test email to the address below and get your results in seconds.

Setting up your test address…

Something went wrong setting up your test address.

This check looks at the technical foundation of your sending setup, covering authentication, infrastructure and key compliance signals. It will surface obvious configuration problems quickly. A full investigation goes deeper into reputation history, list health and sending behaviour, but this is the fastest way to find out if something is structurally wrong.

Send a test email to get started

1 Send your test email to this address
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We don't store your email content. We inspect the structure and headers only, then discard it.

For any business where email drives revenue or retention, from ecommerce and SaaS to agencies and professional services.

2
Send from your platform
HubSpot, Mailchimp, Klaviyo, or wherever you really send from. Any normal email works.
3
Give it a moment
We need to receive and inspect the email. This usually takes a few seconds.
4
Read your results
Your full score and recommendations load right here, no refresh needed.
Waiting for your email…

After you hit send, results can take up to 30 seconds to appear, and that's completely normal. Don't close this tab or hit refresh. Your report will load here automatically.

What we analyse
SPF Record
Confirms your server is authorised to send on your domain's behalf.
DKIM Signature
Cryptographically verifies your email was signed and hasn't been altered.
DMARC Policy
Defines what happens when authentication checks fail: none, quarantine, or reject.
IP Reputation
Cross-checks your sending IP against major global email blacklists.
Domain Reputation
Cross-checks your sending domain against major global blacklists.
Reverse DNS (PTR)
Verifies your sending IP has a valid hostname that matches your domain.
Return-Path Alignment
Checks your bounce address matches your sending domain.
Custom Domain Sending
Confirms you're sending via your own domain, not a shared ESP domain.
Sending Subdomain
Checks emails send from a subdomain to protect your root domain's reputation.
SPF Lookup Limit
Ensures your SPF record stays within the DNS 10-lookup limit.
List-Unsubscribe Header
Verifies the one-click unsubscribe header required by Gmail & Yahoo.
Unsubscribe in Body
Checks a visible unsubscribe link is present in the email body.