[opendmarc-users] Error sending forensic reports

[andreas at reichster.de]

Hey List,

i set up opendmarc 1.2.0 in my server along with postfix, policyd-spf 
and opendkim.
so far everything is working fine - inbound mails are checked and dmarc 
tests are happening in the right way.

but i did set forensicreports = true in my config file.
if i receive a mail from a domain who wants to receive forensic reports 
(not aggregated) i see the following error in my logs:

opendkim[4092]: 4CF59498: bad signature data
postfix/sendmail[5513]: fatal: opendmarc(122): No recipient addresses 
found in message header
opendmarc[5092]: 4CF59498: pclose() returned status 19200
opendmarc[5092]: 4CF59498: dmarctest.org none

how can i debug this? It seems opendmarc doesn't create a valid output 
for sendmail to process?
test mails with sendmail from the commandline are sent successfully.

Any advise is welcome.

Regards
Andreas