Subject: Re: [ietf-dkim] Alternative MAiling List Approach

From: Douglas Otis <[email-masked]>
Date: Mon, 02 Aug 2010 08:31:03 +0200

On 7/30/10 5:34 PM, John Levine wrote:
> In article<[email-masked]>  you write:
>    
>> On Jul 29, 2010, at 3:45 PM, Murray S. Kucherawy wrote:
>>      
>>> Should the MLM draft suggest From: replacement and addition of Reply-To: as a specific
>>>        
>> example of DKIM-friendly MLM behavior?
>>      
>> No. DKIM doesn't really say much about either the From: address or
>> the Reply-To: address, so such a suggestion for "DKIM-friendly"
>> behaviour would be nonsensical.
>>      
> +1 on Steve's -1
>
> Mailing lists work perfectly well with DKIM.  All this stuff about trying
> to peer through them and removely validate contributors is something that
> lists have never done before and we have no reason to invent now.
>    
Agreed.  But to be clear, the TPA-Label extension for ADSP authorizes 
informal third party services.  The authorization provides a reasonable 
basis for exceptions in an ADSP "all tpa-sig" assertion which can help 
avoid problems in using informal mailing-lists, such as this list.

It would be prudent to verify the third-party service confirms 
subscriptions.  This confirmation was a service we offered many years 
ago, which has become unnecessary for legitimate services.  TPA-Label 
protection does not require the validation of contributors.

-Doug
_______________________________________________
NOTE WELL: This list operates according to 
http://mipassoc.org/dkim/ietf-list-rules.html