Hi,
I have setup a postfix mail receiving server.
On this I am using DKIM milter to verify incoming mail DKIM signatures.
From some email clients I am getting the following 'bad signature data' error:
Jun 7 02:10:09 ip-10-194-99-63 dkim-filter[27964]: (unknown-jobid) no signing domain match for `gmail.com'
Jun 7 02:10:09 ip-10-194-99-63 dkim-filter[27964]: (unknown-jobid) no signing subdomain match for `gmail.com'
Jun 7 02:10:09 ip-10-194-99-63 dkim-filter[27964]: (unknown-jobid) no signing keylist match for `[email protected]'
Jun 7 02:10:09 ip-10-194-99-63 dkim-filter[27964]: (unknown-jobid) not internal
Jun 7 02:10:09 ip-10-194-99-63 dkim-filter[27964]: (unknown-jobid) not authenticated
Jun 7 02:10:09 ip-10-194-99-63 dkim-filter[27964]: (unknown-jobid) mode select: verifying
Jun 7 02:10:09 ip-10-194-99-63 dkim-filter[27964]: BA6E210015D: bad signature data
Jun 7 02:10:10 ip-10-194-99-63 postfix/cleanup[30131]: BA6E210015D: milter-reject: END-OF-MESSAGE from mail-pv0-f176.google.com[74.125.83.176]: 5.7.0 bad DKIM signature data; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<mail-pv0-f176.google.com>
can anybody give me any clue why I am getting the above error in my postfix logs
and
what remedies I can put in to rectify or workaround this
or
warn the sender.
Thanks in advance
Ashish Sharma