On Sep 13, 2004, at 7:23 PM, Daniel Quinlan wrote:

> I'm really confused as to why you think that's true.

The long answer:
   Because the Microsoft IPR claim calls out -pra and -core in 
combination.  And we know the algorithm has changed.  And that is why I 
wrote "This would seem to at least exclude any scopes that use 2822 
headers to identify the party most recently responsible for injecting 
the message." And I suspect it is actually broader than that.  
Therefore, using the fetchmail algorithm to do such a thing for 
anti-forgery using DNS records, which is not why the fetchmail 
algorithm is in fetchmail, seems to infringe upon the patent 
application.  No matter what, the IETF cannot decide what is and what 
is not prior art -- courts do that.

The short answer:
   Because if I had written the patent application, that's probably what 
I would have done.

-andy