Mail marked as spam when detection is off?

Hello,

I´ve been using Hestia for mail for a while now. But recently I noticed email from one sender being marked as spam. I have Anti Virus and Spam Filter disabled.

How can I prevent email from being marked as spam?

X-Spam-Level: ******
Authentication-Results: ORIGINATING;
    none
X-Spamd-Result: default: False [6.04 / 15.00];
    BAYES_SPAM(5.04)[99.84%];
    MIME_BASE64_TEXT_BOGUS(1.00)[];
    MIME_GOOD(-0.10)[multipart/alternative,text/plain];
    MIME_BASE64_TEXT(0.10)[];
    RCVD_COUNT_ZERO(0.00)[0];
    MID_RHS_MATCH_FROMTLD(0.00)[];
    DKIM_SIGNED(0.00)[redacted:s=snt];
    RCPT_COUNT_ONE(0.00)[1];
    ARC_NA(0.00)[];
    NEURAL_SPAM(0.00)[0.996];
    FROM_HAS_DN(0.00)[];
    FROM_EQ_ENVFROM(0.00)[];
    TO_MATCH_ENVRCPT_ALL(0.00)[];
    TO_DN_NONE(0.00)[];
    MIME_TRACE(0.00)[0:+,1:+,2:~]
X-Spam-Status: Yes, score=6.04
X-Spam: Yes
X-redirected: yes