Understanding Email Deliverability & Spam Tests
Why are my emails going to Spam?
Mailbox providers use many proprietary signals. This test helps identify common authentication, DNS, reputation, and content signals, but it does not test provider-specific inbox placement and does not guarantee delivery.
What is SPF, DKIM, and DMARC?
SPF authorizes specific IP addresses to send mail on behalf of your domain. DKIM adds a cryptographic signature to verify the email integrity. DMARC ties them together, giving you control over how receiving servers handle unauthorized messages.
How does the SpamAssassin score work?
This report shows the local SpamAssassin score and matched rules. Rule weights and spam thresholds depend on the receiving configuration, so the result does not predict Gmail, Outlook, or another mailbox provider’s placement.
How should I interpret the heuristic summary?
Use it as a checklist of the measured authentication, FCrDNS, and SpamAssassin signals. It is not a delivery prediction or universal reputation grade, and mailbox providers evaluate additional signals.