Free cold email spam checker
Is your cold email going to spam?Find out in 30 seconds.
Sample report
yourcompany.com · example
At risk
3 things to fix
No DMARC record
Gmail requires DMARC for anyone sending 5,000+ emails a day, and it helps every sender's reputation.
Fix
Add a TXT record at _dmarc.yourcompany.com with the value: v=DMARC1; p=none; rua=mailto:dmarc@yourcompany.com
Source: Gmail email sender guidelines
No way to opt out
CAN-SPAM requires a clear way to stop getting your emails, and B2B email is not exempt.
Fix
Add a line like: Not interested? Reply "stop" and I won't email again.
Source: FTC CAN-SPAM Act
No DKIM key on common selectors
Gmail recommends DKIM for all senders and requires it for bulk senders.
SPF record found
SPF is set: v=spf1 include:_spf.google.com ~all
Not on the blocklists we checked
Checked: Spamhaus DBL, SURBL, URIBL.
Based on Gmail's email sender guidelines and the FTC's CAN-SPAM Act. This is a technical check, not legal advice. DKIM uses custom selectors at some providers, so a missing DKIM result can be a false alarm.
What we check
The things inboxes check before you ever get read.
Authentication
SPF, DKIM and DMARC: the records Gmail requires to prove an email is really from you.
Reputation
Spamhaus DBL, SURBL and URIBL domain blocklists, plus whether replies can reach you.
CAN-SPAM basics
Honest subject line, a clear opt-out and a postal address. B2B email isn't exempt.
Your copy
Spam trigger phrases, link shorteners, too many links and shouty subject lines.
For cold email agencies
Watch every client domain. Catch problems first.
One client domain landing in spam can cost you the account. We're building monitoring that checks all of them every day and tells you the moment something breaks.
Award-winning team
CSSDA awards for UI design, UX design, and innovation.
Founding agency pre-order
$99/month
- All your client domains in one place
- Alerts when a domain hits a blocklist or loses SPF, DKIM or DMARC
- White-label reports you can send to clients
- Founding price locked for as long as you stay
Monitoring is in development. You're pre-ordering: cancel any time before it launches for a full refund.
Questions
Is it really free?+
Yes. The domain and email check is free with no signup. The paid plan is for agencies that want every client domain monitored.
Do you send any email or store my copy?+
No. We only read your domain's public DNS records. Pasted email copy is checked and thrown away; it isn't saved.
Why does it say DKIM is missing when I set it up?+
DKIM keys live under a name (a selector) your provider picks. We check the common ones from Google, Microsoft and popular senders. If yours is custom, look up the selector in your provider's settings.
Does CAN-SPAM apply to B2B cold email?+
Yes. The FTC says it covers all commercial email, including business-to-business. This tool checks the basics, but it isn't legal advice.
Will a perfect score guarantee the inbox?+
No. Inboxes also weigh your sending volume, complaints and how people engage. A good score means the setup isn't what's holding you back.