DMARC problems with some emails from the list

[Benny Pedersen]

On 2021-03-08 13:21, Juri Haberland wrote:
> On 08.03.21 11:38, Benny Pedersen wrote:
>> On 2021-03-08 10:34, Juri Haberland wrote:
> 
>> checked your dkim signing, it have signed 2 Date headers, 2 From, 2
>> Subject, solve this :=)
> 
> Benny, it's not about *my* DKIM signature. And it is perfectly legal 
> and
> has a special purpose to double sign some headers, called oversigning.

h=from:from:reply-to:subject:subject:date:date:message-id:message-id:
  to:to:cc:mime-version:mime-version:content-type:content-type:
  content-transfer-encoding:content-transfer-encoding:
  in-reply-to:in-reply-to:references:references:dkim-signature;

double header signing

on top of that C= with simple

it could be a bug in perl Mail::DKIM, but so far spamassassin give dkim 
invalid

eof my help with it