Free tool

Can someonespoof your email?

A free email & DNS health check. We read your SPF, DKIM, and DMARC records and tell you whether scammers can send email as your domain — and whether your real mail is landing. Instant, no email required.

What we check

The three records that protect you.

Email security comes down to three DNS records working together. Miss one and your domain is easier to impersonate — and your legit mail is more likely to hit spam.

01SPF

Who can
send

Lists the servers allowed to send mail as you. Without it, anyone can.

02DKIM

Signed &
sealed

Cryptographically signs your mail so receivers know it wasn't tampered with.

03DMARC

The
enforcer

Tells inboxes what to do with fakes — and reports who's trying to spoof you.

Why it matters

Why email security matters.

Spoofed email is how most phishing starts — and an unprotected domain both invites it and quietly lands your real messages in spam.

0%
of cyber attacks
start with a phishing email
0x
SPF, DKIM & DMARC are the
three records that stop spoofing
0%
of the records we check
are free to set up correctly
0$
cost of this check —
no email or signup needed

Sources: CISA and Deloitte on phishing as the entry point for most cyberattacks.

FAQ

Questions, answered.

Yes — completely free, no signup or email required. Enter your domain (or any email address at it) and you get an instant breakdown of your SPF, DKIM, and DMARC setup with what passed and what to fix.

00.05

Want your email locked down?

Tell us your domain and we'll handle SPF, DKIM and DMARC.
We'll reply within 24 hours with a plan to secure it.

hello@coordinate.studio