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Groups > comp.lang.python > #54408

Re: Tryign to send mail via a python script by using the local MTA

From Dave Angel <davea@davea.name>
Subject Re: Tryign to send mail via a python script by using the local MTA
Date 2013-09-18 23:55 +0000
References (8 earlier) <l19rql$1gk$1@dont-email.me> <l1a03c$95v$1@dont-email.me> <l1aibt$ha7$1@dont-email.me> <B3567FB0-FF5D-416C-AC40-DCDE5D7A7E91@mac.com> <q8ak39t4ii293humvhpqjefuggdpjgcen3@4ax.com>
Newsgroups comp.lang.python
Message-ID <mailman.142.1379548809.18130.python-list@python.org> (permalink)

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On 18/9/2013 18:31, Dennis Lee Bieber wrote:

> 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.

Noting reliable about the MAC adress. Many systems permit or even
encourage spoofing.  And it gets overwritten at each hop, so the other
end cannot easily determine the number a client may have made up.

The first time I added a router to my cable modem, I had to tell it to
use (spoof) the old MAC address so that the cable modem didn't have to
be reprogrammed.

-- 
DaveA

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Thread

Tryign to send mail via a python script by using the local MTA Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-09-15 08:54 -0700
  Re: Tryign to send mail via a python script by using the local MTA Joost Molenaar <j.j.molenaar@gmail.com> - 2013-09-15 20:59 +0200
    Re: Tryign to send mail via a python script by using the local MTA SuperHost - Nikos <nikos@superhost.gr> - 2013-09-15 23:56 +0300
  Re: Tryign to send mail via a python script by using the local MTA Chris Angelico <rosuav@gmail.com> - 2013-09-16 07:31 +1000
  Re: Tryign to send mail via a python script by using the local MTA Joel Goldstick <joel.goldstick@gmail.com> - 2013-09-15 17:57 -0400
  Re: Tryign to send mail via a python script by using the local MTA Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-09-16 01:52 +0000
    Re: Tryign to send mail via a python script by using the local MTA Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-09-16 09:44 +0300
    Re: Tryign to send mail via a python script by using the local MTA Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2013-09-16 09:29 +0200
      Re: Tryign to send mail via a python script by using the local MTA Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-09-16 11:04 +0300
    Re: Tryign to send mail via a python script by using the local MTA Chris Angelico <rosuav@gmail.com> - 2013-09-16 17:44 +1000
    Re: Tryign to send mail via a python script by using the local MTA Chris Angelico <rosuav@gmail.com> - 2013-09-16 17:46 +1000
    Re: Tryign to send mail via a python script by using the local MTA Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2013-09-16 10:07 +0200
    Re: Tryign to send mail via a python script by using the local MTA Chris Angelico <rosuav@gmail.com> - 2013-09-16 18:12 +1000
    Re: Tryign to send mail via a python script by using the local MTA Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2013-09-16 10:12 +0200
    Re: Tryign to send mail via a python script by using the local MTA Chris Angelico <rosuav@gmail.com> - 2013-09-16 18:19 +1000
    Re: Tryign to send mail via a python script by using the local MTA Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2013-09-16 10:43 +0200
    Re: Tryign to send mail via a python script by using the local MTA Chris Angelico <rosuav@gmail.com> - 2013-09-16 18:48 +1000
    Re: Tryign to send mail via a python script by using the local MTA Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2013-09-16 11:40 +0200
      Re: Tryign to send mail via a python script by using the local MTA Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-09-16 12:45 +0300
        Re: Tryign to send mail via a python script by using the local MTA Joost Molenaar <j.j.molenaar@gmail.com> - 2013-09-16 12:06 +0200
          Re: Tryign to send mail via a python script by using the local MTA Denis McMahon <denismfmcmahon@gmail.com> - 2013-09-16 11:21 +0000
            Re: Tryign to send mail via a python script by using the local MTA Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-09-16 14:37 +0300
              Re: Tryign to send mail via a python script by using the local MTA Heiko Wundram <modelnine@modelnine.org> - 2013-09-16 13:44 +0200
                Re: Tryign to send mail via a python script by using the local MTA Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-09-16 15:11 +0300
                Re: Tryign to send mail via a python script by using the local MTA Heiko Wundram <modelnine@modelnine.org> - 2013-09-16 14:17 +0200
                Re: Tryign to send mail via a python script by using the local MTA Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2013-09-16 14:56 +0200
                Re: Tryign to send mail via a python script by using the local MTA Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-09-16 18:02 +0300
                Re: Tryign to send mail via a python script by using the local MTA Denis McMahon <denismfmcmahon@gmail.com> - 2013-09-16 19:09 +0000
                Re: Tryign to send mail via a python script by using the local MTA Joel Goldstick <joel.goldstick@gmail.com> - 2013-09-16 17:07 -0400
                Re: Tryign to send mail via a python script by using the local MTA Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-09-17 00:18 +0300
                Re: Tryign to send mail via a python script by using the local MTA Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-09-16 23:41 +0000
                Re: Tryign to send mail via a python script by using the local MTA Heiko Wundram <modelnine@modelnine.org> - 2013-09-17 12:46 +0200
                Re: Tryign to send mail via a python script by using the local MTA Grant Edwards <invalid@invalid.invalid> - 2013-09-17 14:37 +0000
                Re: Tryign to send mail via a python script by using the local MTA Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-09-17 18:17 +0300
                Re: Tryign to send mail via a python script by using the local MTA Denis McMahon <denismfmcmahon@gmail.com> - 2013-09-17 16:30 +0000
                Re: Tryign to send mail via a python script by using the local MTA Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-09-18 00:42 +0300
                Re: Tryign to send mail via a python script by using the local MTA Chris Angelico <rosuav@gmail.com> - 2013-09-18 07:47 +1000
                Re: Tryign to send mail via a python script by using the local MTA William Ray Wing <wrw@mac.com> - 2013-09-17 18:34 -0400
                Re: Tryign to send mail via a python script by using the local MTA Denis McMahon <denismfmcmahon@gmail.com> - 2013-09-18 05:20 +0000
                Re: Tryign to send mail via a python script by using the local MTA Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-09-18 18:31 -0400
                Re: Tryign to send mail via a python script by using the local MTA Dave Angel <davea@davea.name> - 2013-09-18 23:55 +0000
                Re: Tryign to send mail via a python script by using the local MTA Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-09-17 19:29 -0400
                Re: Tryign to send mail via a python script by using the local MTA Νίκος <nikos.gr33k@gmail.com> - 2013-09-21 12:21 +0300
                Re: Tryign to send mail via a python script by using the local MTA William Ray Wing <wrw@mac.com> - 2013-09-21 09:29 -0400
                Re: Tryign to send mail via a python script by using the local MTA alex23 <wuwei23@gmail.com> - 2013-09-23 11:17 +1000
                Re: Tryign to send mail via a python script by using the local MTA Piet van Oostrum <piet@vanoostrum.org> - 2013-09-17 22:58 -0400
                Re: Tryign to send mail via a python script by using the local MTA Joel Goldstick <joel.goldstick@gmail.com> - 2013-09-17 07:55 -0400
                Re: Tryign to send mail via a python script by using the local MTA Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-09-17 15:11 +0300
                Re: Tryign to send mail via a python script by using the local MTA Robert Kern <robert.kern@gmail.com> - 2013-09-17 13:51 +0100
                Re: Tryign to send mail via a python script by using the local MTA Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2013-09-17 14:52 +0200
                Re: Tryign to send mail via a python script by using the local MTA Jake Angulo <jake.angulo@gmail.com> - 2013-09-20 13:56 +1000
                Re: Tryign to send mail via a python script by using the local MTA feedthetroll@gmx.de - 2013-09-20 04:05 -0700
                Re: Tryign to send mail via a python script by using the local MTA Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2013-09-20 08:48 +0200
                Re: Tryign to send mail via a python script by using the local MTA Robert Kern <robert.kern@gmail.com> - 2013-09-20 10:26 +0100
                Re: Tryign to send mail via a python script by using the local MTA Heiko Wundram <modelnine@modelnine.org> - 2013-09-17 14:22 +0200
                Re: Tryign to send mail via a python script by using the local MTA Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-09-16 19:15 +0300
                Re: Tryign to send mail via a python script by using the local MTA Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-09-16 19:23 +0300
                Re: Tryign to send mail via a python script by using the local MTA Denis McMahon <denismfmcmahon@gmail.com> - 2013-09-16 19:07 +0000
                Re: Tryign to send mail via a python script by using the local MTA William Ray Wing <wrw@mac.com> - 2013-09-16 13:53 -0400
                Re: Tryign to send mail via a python script by using the local MTA Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-09-17 00:15 +0300
                Re: Tryign to send mail via a python script by using the local MTA Tim Chase <python.list@tim.thechases.com> - 2013-09-16 20:40 -0500
                Re: Tryign to send mail via a python script by using the local MTA feedthetroll@gmx.de - 2013-09-16 23:15 -0700
            Re: Tryign to send mail via a python script by using the local MTA Heiko Wundram <modelnine@modelnine.org> - 2013-09-16 13:32 +0200

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