I guess there is a problem in exim’s implementation of ARC.
I compiled 4.97 with experimental_arc=true
Added some lines to exim4.conf to verify arc.
This is what exim outputs to opendmarc.dat:
job 1r6u0O-00000000188-2b84
reporter smtp.jvangent.nl
received 1700923896
ipaddr 2607:f8b0:4864:20::e2d
from gmail.com
mfrom gmail.com
spf 0
dkim gmail.com 20230601 0
pdomain gmail.com
policy 15
rua
mailto:mailauth-reports@google.com
pct 100
adkim 114
aspf 114
p 110
sp 113
align_dkim 4
align_spf 4
action 2
arc 11
arc_policy $d json:[]
the last line will make sure import cannot be run, as it expects an integer not $d.
It seems to me that there is some code that tries to get this integer but fails. Outputting the variable instead of the actual value.
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