Newsletter marked as spam by rspamd daemon

Good evening (o;

Just as a feedback note…

When subscribing for a newsletter it is marked as spam by the rspamd daemon which is widely used on the net:

FUZZY_DENIED (9.105672) [1:9216fafed3:0.75:txt,1:9216fafed3:0.71:txt]
URIBL_GREY (1.5) [list-manage.com:url]
FROM_EXCESS_QP (1.2)
REPLYTO_EXCESS_QP (1.2)
URI_COUNT_ODD (1) [5]
SUBJECT_ENDS_SPACES (0.5)
MID_MISSING_BRACKETS (0.5)
BAD_REP_POLICIES (0.1)
MIME_GOOD (-0.1) [multipart/alternative,text/plain]
FROM_NEQ_ENVFROM (0) [newsletter@sparkleapp.com,bounce-mcsys.us17_85337837.101015d44d-richard=klingler.net@mail12.mcsignup.com]
ARC_SIGNED (0) [i=1]
DKIM_TRACE (0) [mail12.mcsignup.com:+]
MIME_TRACE (0) [0:+,1:+,2:~]
RCVD_TLS_LAST (0)
RCVD_IN_DNSWL_NONE (0) [198.2.140.132:from]
HAS_REPLYTO (0) [newsletter@sparkleapp.com]
R_SPF_ALLOW (0) [+ip4:198.2.140.132]
RCVD_COUNT_TWO (0) [2]
SENDER_REP_SPAM (0) [asn: 14782(0.10), country: US(-0.01), ip: 198.2.140.132(0.00)]
PREVIOUSLY_DELIVERED (0) [richard@klingler.net]
TO_DN_NONE (0)
ARC_NA (0)
DMARC_NA (0) [sparkleapp.com]
R_DKIM_ALLOW (0) [mail12.mcsignup.com:s=k1]
REPLYTO_EQ_FROM (0)
FROM_HAS_DN (0)
RCPT_COUNT_ONE (0) [1]
TO_MATCH_ENVRCPT_ALL (0)
FORGED_SENDER_VERP_SRS (0)
ASN (0) [asn:14782, ipnet:198.2.128.0/19, country:US]

Maybe you want to re-evaluate your mailing provider or change the mail headers (o;

We use mailchimp. I’m sure they’re on it.