Email deliverability test

Email deliverability test gives you a one-time address and shows the SPF, DKIM and DMARC results on the message that arrives. There is no score.

The address sits on a domain that is already receiving mail, and it lasts 24 hours. Send one message to it from the server you want to see. This page then shows the SPF, DKIM and DMARC results taken from the Authentication-Results header on that message, whether those domains line up with the From address, the header itself, and the bounce class when the message is a bounce. The header is what arrived with the message. This page does not compute a separate verdict, and it does not check whether the sending server is listed anywhere.

5 addresses an hour from one network. The message is kept until the address expires, then it is deleted. Nothing is forwarded and nothing is sent back.

POST /tools/deliverability-test creates the address. GET /tools/deliverability-test/{token} returns the result. No API key.

Read the records first with the SPF, DKIM and DMARC checker. Count lookups with the SPF lookup checker, build a record with the DMARC generator, or paste a header into the email header analyzer.