Are your emails actually reaching the inbox?

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

Send one test email to the address below. Results usually appear within 30 seconds. Keep this tab open.

Setting up your test address…

Something went wrong setting up your test address.

This check looks at the technical foundation of one message: authentication, infrastructure, and compliance headers. It will show an obvious configuration problem. It cannot see list age, journey design, or how your streams share a reputation. That is what the Deliverability Review and Fix is for.

Send a test email to get started

1 Send your test email to this address
···

We don't store your email content. We inspect the structure and headers only, then discard it.

What did you send?

For SaaS, ecommerce, and fintech teams, where email is how customers activate, buy, or stay.

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 before your checks can run.
4
Read your results
Your full score and recommendations load right here, no refresh needed.
Waiting for your email…

Your report will load here automatically once your email arrives.

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 blocklists.
Domain Reputation
Cross-checks your sending domain against major global blocklists.
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.