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To: python-list@python.org
From: Dennis Lee Bieber <wlfraed@ix.netcom.com>
Subject: Re: Tryign to send mail via a python script by using the local MTA
Date: Wed, 18 Sep 2013 18:31:33 -0400
Organization: IISS Elusive Unicorn
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On Tue, 17 Sep 2013 18:34:50 -0400, William Ray Wing <wrw@mac.com>
declaimed the following:


>
>I think you need to read up on some of the most basic fundamentals of tcp/ip networking, i.e., the basis of the global internet.  EVERY network packet (and I do mean every) packet in an IP network carries both a source and a destination address in its header.  These are fundamentally necessary in order to allow the gateway router at the originating site to direct an outgoing packet to its destination, and allow the receiving host at the destination site to craft reply packets.
>

	Even worse -- IP packets are wrapped by Ethernet packets which use MAC
addresses for direct routing between nodes... Granted, those MAC addresses
may not propagate beyond the next defined gateway IP host, but they do
(theoretically) identify the exact NIC that sent the packet.
-- 
	Wulfraed                 Dennis Lee Bieber         AF6VN
    wlfraed@ix.netcom.com    HTTP://wlfraed.home.netcom.com/