Re: OpenDKIM 2.11.0 Alpha release available

From: Murray S. Kucherawy <msk_at_blackops.org>
Date: Tue, 19 Jul 2016 06:53:37 -0700 (PDT)

On Tue, 3 Nov 2015, A. Schulze wrote:
>> On Sat, 24 Oct 2015, A. Schulze wrote:
>>> But the 'classic' opendkim _at_destination.domain fail to validate:
>>>
>>> Oct 24 12:32:28 destination opendkim[29449]: 3njdzJ4ZYgz7tBQ: syntax
>>> error: syntax error in signature data (ASCII 0x21 at offset 99)
>>
>> Right, it won't know the syntax.
>
> shouldn't a dkim v1 validator ignore any dkim v2 signature?

Actually, yeah, you're right, it's a syntax error. We first parse the
DKIM signature, and a bang-tag like this is not valid DKIM syntax to
libopendkim because it expects tags to start with alphanumerics. This
is tripping on the exclamation mark.

This introduces a backward compatibility problem. I'll have to rethink
it.

-MSK
Received on Tue Jul 19 2016 - 13:54:04 PST