Free email tester — no account, no card
See your email exactly as a receiver does.
A DNS check reads your records. This reads a real message. Send one email to the address we give you, and we show you the SPF, DKIM and DMARC result a mailbox provider computes — including whether they actually align with the From your readers see, which no DNS lookup can tell you.
Why send a real email
The one thing DNS cannot show you.
EFFECTIVE SPF
Not just your record — whether the IP that actually sent this message is authorised by it.
REAL DKIM
Whether the signature on this message verifies against your key, checked the way a receiver checks it.
TRUE ALIGNMENT
Whether the domain that authenticated is the domain in your From — the check DMARC really makes.
How it works
Three steps, about a minute.
- 1 You get a one-time address. We reserve a throwaway mailbox just for this test. No sign-up, and it expires on its own.
- 2 You send it an email. From the account you actually send from — your app, your CRM, your mailbox. That is the message we judge.
- 3 You see what a receiver saw. SPF, DKIM and DMARC as a mailbox provider computed them, with the fix for anything that failed.