FAQ
Frequently asked questions
Everything you need to know about deliverability testing, authentication and scoring.
How does the test work?
Generate a disposable address, send us the email you want to test, and in seconds you get a /10 score with a full analysis of authentication, blacklists, content and spam signals.
Is it free?
Yes. No account needed: copy the address, send the email, read the report.
What does the /10 score mean?
We start at 10 and subtract points for each issue found: missing or misaligned SPF/DKIM/DMARC, blacklisted IP, suspicious content and the Rspamd spam-engine score.
Why does my email land in spam?
The most common causes are incomplete authentication (SPF/DKIM/DMARC), missing reverse DNS, a blacklisted IP, malformed HTML or an unbalanced text/image ratio. The report tells you exactly what to fix.
Is my data stored?
We analyze the message to build the report and keep it only as long as needed to show it to you. The .eu edition is designed for full GDPR compliance. See the Privacy page.
Can I use it for newsletters?
Yes. We also check one-click List-Unsubscribe (RFC 8058), message size and text/image ratio, which are essential for bulk sending.