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

Dave Crocker dhc at dcrocker.net
Wed Jun 20 14:17:49 PDT 2012

On 6/20/2012 11:50 AM, Franck Martin wrote:
> It is notorious that people having a .edu email address use a lot forwarding, and that systems break DKIM in the process...

typical 'forwarding' through university-based addresses is of the 
'alias' variety:


This does not change any of the data that is 'signed' by DKIM.  Hence a 
DKIM signature should survive the forwarding.

DKIM signature breaks when a covered header field or body are modified 
and otherwise survives.

  Dave Crocker
  Brandenburg InternetWorking

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