[exim] Hi, Can you help me ? How to config the mailman3 and…

Hi, Can you help me ? How to config the mailman3 and exim4 when i use arc?


I dont config my exim4 with arc, but i config my mailman3 with the blow config:
vi /var/lib/exim/configure
****************************
acl_check_data:
warn verify = arc/tomtoworld.xyz
warn logwrite = arc_state: <$arc_state> condition = ${if def:arc_state_reason} logwrite = reason: <$arc_state_reason>
accept add_header = :at_start:${authresults {tomtoworld.xyz}}
****************************
mailman3_transport:
debug_print = "Email for mailman"
driver = smtp
protocol = lmtp
allow_localhost
hosts = tomtoworld.xyz
port = 8024
rcpt_include_affixes = true
#arc_sign = tomtoworld.xyz:s201512:/etc/exim4/dkim/dkim.pem:timestamps
****************************
remote_smtp:
debug_print = "T: remote_smtp for $local_part@$domain"
driver = smtp
arc_sign = tomtoworld.xyz:s201512:/etc/exim4/dkim/dkim.pem






The receive email show two Authentication-Results, What should i do?
eg:
Authentication-Results: tomtoworld.xyz; dkim=pass header.d=163.com; arc=none (Message is not ARC signed); dmarc=pass (Used From Domain Record) header.from=163.com policy.dmarc=none

Authentication-Results: mx.google.com;
       spf=pass (google.com: domain of postmaster@??? designates 43.154.162.239 as permitted sender) smtp.mailfrom=tomtoworld.xyz;
       dkim=neutral (body hash did not verify) header.i=@163.com header.s=s110527 header.b=edDXBOp3

Thank you！