Re: (DMARC) We've been here before, was Why mailing lists

> > The magic token has to be cryptographically tied to the contents of the 
> > original message
> No it doesn't. It has to be cryptographically tied to the mailing list's 
> re-sending of the message. How to do that with asymmetric keys should be 
> discussed somewhere other than on this list.
Now I'm totally confused.  How does that help me as a sender distinguish 
between a good mailing list that is resending real mail from Yahoo and an 
evil mailing list that is sending phishes?
Regards,
John Levine, johnl(_at_)taugh(_dot_)com, Taughannock Networks, Trumansburg NY
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