[SATLUG] Fwd: Undelivered Mail Returned to Sender

Thomas King kingttx at tomslinux.homelinux.org
Sun Feb 11 08:16:31 CST 2007


> At 6:36 PM -0600 2/9/07, Daniel J. Givens wrote:
>
>>>  Can someone explain to me how broken a mail system has to be in order to
>>>  generate this kind of a bounce?
>>
>>  No broken-ness. It looks like the server didn't like that your mail which
>>  says it's from shub-internet.org is coming from his.com. Sender/source
>>  domain mismatch.
>
> Right, in which case the receiving machine is, by definition, broken.
> Very broken.
>
> There are billions of people on this planet, any of whom should be
> able to send e-mail as themselves from their own machines.  If they
> are user at example.com, and all their e-mail is handled by
> ISP-domain.example.co.uk, they should be able to send their e-mail as
> their username from those machines.
>
>>  This is a defensive tactic used to keep spammers from sending mail via
>>  some zombie and saying they're from paypal.com, or something else.
>
> Right, which is a seriously broken way to mis-handle e-mail.
>
> I mean, do you really want to break all mailing lists in existence in
> this world?
>
> --
> Brad Knowles <brad at shub-internet.org>, Consultant & Author
> Co-author of SAGE Booklet #15 "Internet Postmaster: Duties and
> Responsibilities"
> Founding Member and Platinum Individual Sponsor of LOPSA:
> <http://www.lopsa.org>
> Papers: <http://tinyurl.com/tj6q4> LinkedIn Profile:
> <http://tinyurl.com/y8kpxu>
> --
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Sorry, wrong name in last reply. Replace "Dan" with "Brad".


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