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Re: Comments (II) on draft-church-dns-mail-sender-02.txt

2002-08-28 20:58:04


Thank you for your reply.

Andrew Church wrote:

     As I said before in private mail, my goal is not to avoid modification
of the headers en route (though I agree that's not a bad idea), but to
ensure that the original sender doesn't give a false sender address.

In section 3.2: 
   "which the sending MTA would encrypt with its private key;"

In section 3.4: 
   "as long as the relay MTA can properly respond to an MS challenge for 
    the domain, the sender address will be accepted." 

May I know, how a proper relay MTA (e.g. mailing list, bounce, forward)
is able answer a MS challenge without having access to the private key?

My interest is actually not about "avoiding modification", but about
how to prevent abuses of a domain address. I believe, that there is a 
need for a STUB to be included in an email message.


Rahmat M.  Samik-Ibrahim --  -- --
Wise men say:Can't Help Falling in Linux with GNU - LILO and GRUB