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Re: [ietf-dkim] Re: Discussing what someone said about SSP - productive?

2007-12-07 08:17:00


Michael Thomas wrote:
I'm sorry, but are you suggesting that romania.mafia.com has a legitimate
voting right for their use of my domain name that SSP would take away
from them illegally?


Are you saying that, at the time of SSP processing, you can know for certain that that is the name and nature of the third party? If you are, please explain the basis, because I do not see it.

My point, in highlighting the third party, is exactly to note that SSP is based on some assumptions that attend only to the owner of the SSP record and not to the third party whose mail is affected by that record.

As has been noted, ad nauseum, SSP will, at best, be an imperfect mechanism, at least due to taking years to adopt broadly and, probably more importantly, to broken signatures.

Giving one party a source of leverage on mail from a another is the very nature of what SSP is seeking to do. Certainly it is mail not signed by the first party. This perspective should raise warning flags.

That mail abuse is such an extreme problem is probably the only reason we would consider such a mechanism, but we need to be careful that we do not use it to entirely disenfranchise possibly legitimate mail senders.

d/
--

  Dave Crocker
  Brandenburg InternetWorking
  bbiw.net
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