[dmarc-discuss] pounding nails with DMARC screwdriver, was Google & IPv6 SPF check

Franck Martin fmartin at linkedin.com
Tue Jun 12 17:46:19 PDT 2012



On 6/12/12 17:14 , "John Levine" <johnl at taugh.com> wrote:

>>I realize that to the old school folks, this is like bragging about
>>farts in church, but I'm just not against the idea of trying stuff
>>like rewriting the message, maybe including the from address to be the
>>list's from address, signing and working with that policy instead of
>>the original sender's policy. To me, it is akin to how a mailing list
>>sending to you has its own sending IP reputation that takes precedence
>>over the reputation of the sending IP addresses of the original
>>authors.
>
>Al: I have all these changes to make your lists work with DMARC.
>
>List op: We sign our mail.  Why not just whitelist us?
>
>Al: You could change the From: lines so you can't tell who wrote each
>message.
>
>List op: We sign our mail.  Why not just whitelist us?
>
>Al: You could make all these changes to deter forgery of your domain.
>
>List op: Nobody forges our domain, but since we sign our mail, you can
>just whitelist us.
>
>Al: If you take out the subject tags and message footers, sometimes the
>sender's
>DKIM signatures might still be valid.
>
>List op: We sign our mail.  Why not just whitelist us?

Users at gmail to list op: we can't receive emails from your list, fix it!

List op: may be I should do something...




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