AuthEmailTest.comInbound Email Authentication Test
FAQs
Common questions about using AuthEmailTest.com and interpreting the inbound authentication report.
What does AuthEmailTest.com check?
It shows how this receiving server saw one message you sent: connecting IP, HELO name, envelope sender, header From address, DKIM signatures, SPF result, DMARC alignment, and spam filter analysis.
What should I send?
The message must include a subject and body. You can send a simple message for basic SPF, DKIM, and DMARC checks, or send the actual message you are sending for deeper spam filter analysis. Do not forward a message; it must be the actual message sent.
Does it check spam filtering?
Yes. After the message is accepted, the service runs Rspamd and SpamAssassin scans and shows the scores, actions, and main rules on the report. These results are diagnostic only; other providers and gateways may score the same message differently.
Why enter the sender address first?
The address lets the report check whether the envelope sender and header From match what you expected, and it lets the pre-check warn about obvious sender-domain DNS problems before you send.
How long does the test address work?
Each generated address is short-lived and accepts one message only. After a valid message arrives, the address is consumed and no longer accepts more mail.
Why can the pre-check pass but the live test fail?
The pre-check only looks for obvious DNS issues on the sender domain. The live result depends on the actual sending IP, envelope sender, DKIM signature, and alignment used when the message is delivered.
What does a DMARC failure mean?
DMARC fails when neither SPF nor DKIM passes in alignment with the visible From domain. SPF or DKIM can appear to pass separately while still not aligning for DMARC.
What is the message size limit?
The current limit is 1 MB including headers and body. The service is intended for diagnostic messages, not attachments or large content.
Are results permanent?
No. Result pages and stored diagnostic data are retained for the configured retention period, currently 7 days, then cleanup jobs remove expired data. You can also delete a completed result from its report page when you no longer need it.
Something looks wrong. What should I do?
Check the detailed SMTP, sender, SPF, DKIM, DMARC, Rspamd, and SpamAssassin panels first. If the report still looks unexpected, please contact us with the result link and what you expected to see.