[dmarc-discuss] How does *this* mailing list interact with dmarc?

Franck Martin fmartin at linkedin.com
Wed Jun 20 10:13:37 PDT 2012


As John Levine would put it: if the list DKIM sign emails then just whitelist it

Toute connaissance est une réponse à une question.

On Jun 20, 2012, at 9:56 AM, "Andreas Schulze" <sca at andreasschulze.de> wrote:

> Am 20.06.2012 14:20 schrieb Steven Chamberlain:
>> From the list archives it appears there would be some list information
>> and unsubscribe instructions appended to the message body, which would
>> cause my DKIM signature not to verify.
> 
> Right. Appending a footer and changing the subject is "last century behavior"
> to me. Listmanagers (like MTAs too) should avoid *any* modification and
> concentrate to their job: maildistribution.
> 
> In case of mailman two parameters fixes most of the pain:
> 
> - $subject_prefix = ''
> - $msg_footer = ''
> 
> OK. I saw some situations where mailman rewrites an content-type header
> but if I consider this as a bug in the sending MUA or a bug in the listmanager
> these problems could be fixed.
> 
> I wrote these settings to the listadmin (off-list) but maybe there are more
> important things to do....
> 
> 
>> With many DMARC implementors probably subscribed to this list, I expect
>> to be receiving some new failure reports shortly :)
> _adsp._domainkey.pyro.eu.org to 'dkim=discardable' is also very aggressiv.
> I personaly would expect lost mail with this setting.
> 
> I have set only 'dkim=all' and request failure reports. Every mail to this list generates two or three of them because of the mailman :-(
> 
> Andreas
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