[Mailman-Developers] [dkim-dev] dkim and email list software - potential solution

Douglas Otis dotis at mail-abuse.org
Wed Sep 30 03:00:26 CEST 2009


On 9/29/09 12:10 PM, Dave CROCKER wrote:
> wow.  more than 16 hours and no one has posted anything.

There are no good solutions.  This feature was intended to cause 
messages with their signatures damaged or missing to not end up in 
someone's mailbox.  Any domain making an ADSP discard assertion should 
expect the domain will become usable on mailing lists.  Such domains 
should be limited to handling transactional emails.

Unfortunately, this view might lead to more phishing exploits whenever 
alternative domains are then used by the same organization.  When there 
is nothing good to be said, perhaps the better choice is to say nothing. 
  Perhaps there should be a standardization for transactional 
sub-domains and stringent requirements where ADSP transactions then 
become superfluous. Where subdomains like secure, or 
signed.somedomain.com versus somedomain.com might be used as a way to 
establish a visual convention.

-Doug


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