Re: message headers say dkim = fail, stats say = PASSED. why the conflict, and how to fix?

From: SM <sm_at_resistor.net>
Date: Wed, 06 Jul 2016 09:00:36 -0700

Hello,
At 09:04 29-06-2016, jasonsu_at_mail-central.com wrote:
>I can't see to figure out what the problem here is :-/ I'd
>appreciate any help getting this figured out and solved once an for all!
>
>In some-not-all received emails -- notably ONLY those sent via
>'bulk' services -- I get a DKIM fail: "signature verification
>failed". Here's one example:
>
>Received message headers
> DKIM-Filter: OpenDKIM Filter v2.10.3 mail.example.com 3rfbq51KBTz2xF0
> Authentication-Results: dkim.example.com/3rfbq51KBTz2xF0;
> dkim=fail reason="signature verification failed"
> (1024-bit key; unprotected) header.d=proxyvote.com
> header.i=_at_proxyvote.com header.b=XjB07H1q

The message to this mailing list passed DKIM verification. In
general, mailing list change the message body and that causes a DKIM
verification failure. I suggest verifying whether the "bulk"
services is doing that.

Regards,
-sm
Received on Wed Jul 06 2016 - 16:01:53 PST