On Wednesday, June 11, 2014 6:33 PM, Alessandro Vesely <[email protected]> wrote:

> Or am I missing something?

delegated domain inclusion in DKIM-D header is optional,
and considering it requires some kind of whitelist from which
its to draw a list of domain it should include, compared 2 those
it should not, it is most probably not gonna be used.

not to speak that creation of such a whitelist is whole
another problem.

if u instead, make it automatic, for example, putting
To: domain into DKIM-D header automatically while message is
signed, then u have an open hole of spoofing such message by
any user of, for example, ESP which was in original To:.

so, u again need 2 fall back to whitelist.


now comes the question of why r we doing whitelisting in headers,
solving only a small portion of the DMARC-excluded email, when
we could do whitelisting in ASL, and deal with the problem
in a much broader way?

if we r doing whitelisting, it should be done properly, not
with aidband like DKIM-D.


> Beg your pardon, but I don't think you mean age/sex/location.  What is ASL?

Aligned Sender List... or Allowed Sender List, we r still debating
about the name. Hector Santos introduced it some time ago, as a 3rd party
solution for DMARC. it is still being worked on, but it's much more
promising than DKIM-D.

i simply prefer it over any header mumbo jumbo:
1. has no spoofing elements like DKIM-D,
2. can always survive message path, unlike anything header based,
3. provides much wider support for 3rd party than just ML.


-- 
Vlatko Salaj aka goodone
http://goodone.tk

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