Forwarding-Host : SPAM quarantine and not header-modify posibile?

Hi,
we have configured a “forwarding-Host” and enable Spamfilter.
The decription say is is only Header to make Rules for sorting in Spam-Folder.

Is is posible with some Hacks to make RSPAMD move te mails to Quarantaine and not mark is as Spam in Header?

Greets from Germany
Christian (DO5CTH)