Re: [exim] DomainKeys signing makes headers too long -> tagg…

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Autor: Karl Fischer
Fecha:  
A: exim-users
Asunto: Re: [exim] DomainKeys signing makes headers too long -> tagged as spam
Ted Cooper wrote:
> Tomasz Chmielewski wrote:
>> Tomasz Chmielewski schrieb:
>>> If DomainKeys signing is enabled in Exim, it adds a signature in email's headers.
>>>
>>> However, this signature in header is not wrapped, which makes the header very long, i.e.:
>>>
>>> DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=default; d=somedomain.tld;
>>>     h=Received:To:Subject:Message-Id:From:Date;
>>>     b=b...................................................................................................................xyz;

>>>
>>>
>>> Such long headers trigger SpamAssassin's HEAD_LONG test, which adds 2.5 spam points to a mail.
>>>
>>>
>>> How can I make DomainKeys signature properly wrapped when signing with Exim
>>> (note: DKIM signature is wrapped properly, only DomainKeys makes these problems)?
>> Nobody knows?
>>
>> At least, could anyone confirm (or not) that these very long DomainKeys
>> headers are inserted by Exim in his/her installation as well, when
>> DomainKeys signing is enabled?
>>
>
> I was going to look at this weekend, but I don't use DomainKeys to check
> it now. Does anyone use this or did everyone head over to DKIM?


well, if that helps:
I quickly greped over some 300.000 emails and I found only a few using DomainKeys,
but all of them were long lines, not wrapped. Didn't have any problems with SPAM
Filtering so far ...

- Karl