Who really sent it
The service and the server your email came from, which is not always the one you expect.
Email tester
Send us a test email. See if it is signed as you.
We give you a one-off address. Send an ordinary email to it, from your mailbox or your newsletter tool, and we tell you in plain English who really sent it, whether it passed SPF, DKIM and DMARC as your own domain, and what to change.
- Reads the headers only
- No account, nothing to install
- Deleted after 30 minutes
What the email tester tells you
Whether it is signed as you
SPF, DKIM and DMARC, each judged against your own domain. A platform that signs as itself shows up here.
What happens to a fake
Whether an email faked in your name is refused, sent to junk or still delivered.
What to change
The setting or the record to fix, in plain words, most important first.
When everything passes and it still lands in spam
Passing SPF, DKIM and DMARC proves an email really came from you. Inboxes then judge whether people want it, and that rests on your sending reputation.
What decides it: sending only to people who asked for your mail, removing addresses that bounce, keeping spam complaints under 1 in every 1,000 messages as Google asks of bulk senders, one-click unsubscribing, and building up volume gradually on a new domain or service. Google Postmaster Tools shows how Gmail rates your domain.
The setup is the part we check and fix for you: Managed DMARC.
Questions
Why test with a real email?
A record checker reads what your domain publishes. A real email shows what your mail service actually does with it: which server sent the message, whose name it was signed in, and whether the two match your domain.
Can I test my newsletter or shop emails?
Yes. Add the test address to a list in your newsletter or shop platform and send a campaign to it. That is where a missing domain setting most often hides.
Do you keep my email?
No. We read only the technical lines at the top of the email, never what it says, and the result is deleted after 30 minutes.
Does this show whether my email lands in the inbox?
It shows whether your email is properly signed as your domain, which is what lets inboxes trust it. If it passes and still lands in spam, the result explains what decides that instead.
Why has nothing arrived?
Check the address was copied whole, and give it a few minutes. An email that fails DMARC on a domain set to reject is refused before it reaches us, so if nothing ever comes, send one from another account to compare.
The free record checkers
TXT · your domain
SPF checker
Reads the record that lists the servers allowed to send email as you, and counts the DNS lookups it costs.
Check SPFTXT · _dmarc
DMARC checker
Reads your instruction to inboxes about mail that fails, and whether its reports reach anyone.
Check DMARCTXT · selector._domainkey
DKIM checker
Reads the public keys that prove your email was signed by you, on the common selectors or your own.
Check DKIMTXT · _mta-sts · policy file
MTA-STS checker
Reads the policy that asks senders to deliver mail to you only over an encrypted connection, and your TLS reporting.
Check MTA-STS
Start with the free check.
It reads your SPF, DKIM and DMARC records in about 30 seconds, and tells you where you stand today.