Free email security tools
No signup. Everything uses public DNS records only.
Email security scan
Grade your SPF, DKIM and DMARC in 10 seconds, with fix steps.
SPF record generator
Pick the services you send email with and get a ready-to-paste SPF record.
DMARC record generator
Build a DMARC record that blocks fake emails using your name.
DKIM checker
Check whether your emails are digitally signed, including custom selectors.
Fake-domain checker
See whether scammers registered a look-alike of your domain.
Scam check
Paste a suspicious email and get a verdict in plain English.
Step-by-step fix guides
Where to add SPF, DKIM and DMARC records at your domain host.
GoDaddy
How to add email security records at GoDaddy
Namecheap
How to add email security records at Namecheap
Cloudflare
How to add email security records at Cloudflare
Squarespace Domains
How to add email security records at Squarespace Domains
Wix
How to add email security records at Wix
Porkbun
How to add email security records at Porkbun
Microsoft 365
How to add email security records at Microsoft 365