The mailing list for listmasters using Sympa

[Steve Shipway <address@concealed>]

After reading the Wikipedia DMARC entry at http://en.wikipedia.org/wiki/DMARC 
and RFC2606 http://tools.ietf.org/html/rfc2606 , it seems to me that the best 
way to munge the From header and avoid DMARC would be to change the email 
address to have the .invalid suffix, rather than change the From email 
address to be that of the list.

Thus --

From: Mr Test <address@concealed>

would be rewritten to be

From: Mr Test via Mailing List <address@concealed>

The .invalid GTLD is reserved for precisely this usage and will never become 
a valid email address.

Does anyone have any thoughts?  I might extend my patch (yet again) to give 
options for the email address to be changed in this way.

Steve

Steve Shipway
University of Auckland ITS
UNIX Systems Design Lead
address@concealed
Ph: +64 9 373 7599 ext 86487