What is it?
This mail deliverability finding means the optional Rspamd integration assigned a high spam score to the received test message. The score is based on symbols triggered by content, headers, authentication, reputation, and policy checks.
Why does it matter?
A high spam score can cause messages to be rejected, quarantined, or delivered to spam. Even when SPF, DKIM, and DMARC pass, content or reputation signals can still harm deliverability.
How to fix it?
Review the Rspamd symbols in the report and fix the strongest signals first.
SPF_FAIL -> authorize the sender in SPF
DKIM_INVALID -> fix DKIM signing or DNS key records
DMARC_POLICY -> align SPF or DKIM with Header From
RBL_* -> investigate IP reputation and delistingSend a simple test message from the same platform after each fix. Avoid changing many variables at once, or it will be hard to know which change lowered the score.