Free tool · no signup
Is your email set up to land in the inbox?
Enter your domain and we’ll check the DNS records that decide whether your mail is trusted — SPF, DKIM, DMARC, MX and MTA-STS — and tell you, in plain English, what to fix.
Why these records matter
SPF says who can send
It lists the servers allowed to send email for your domain. Without it, anyone can forge your address and receivers get suspicious.
DKIM proves it's really you
A cryptographic signature on every message that receivers verify. It's the strongest signal that mail is authentic and untampered.
DMARC stops impersonation
It tells inbox providers what to do with mail that fails SPF and DKIM, and reports who's sending as you. Enforcement blocks spoofing outright.