Forward mail with proper DKIM signature

processmail.sh

#!/bin/sh

tmpfile=`mktemp /tmp/processmail.XXXXXXX.eml`
trap "rm -rf $tmpfile $tmpfile.dir" EXIT

cat > $tmpfile
mkdir $tmpfile.dir
ripmime -i $tmpfile -d $tmpfile.dir
TO=`grep "^To:" $tmpfile`
TO=${TO##* }
mailx -t \
	-r "Jan Sarenik <$TO>" -a $tmpfile.dir/*.zip <<EOF
Subject: Report domain FWD
From: Jan Sarenik <$TO>
To: Dmarcian <xxxxxxxxx@ag.dmarcian.com>
X-Loop: jasan@jasan.tk

See attachment
EOF