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Re: Check this out T-Mobile Launches GoSmart Prepaid Service Nationally on Phone Scoop


From: JP Viljoen <froztbyte () froztbyte net>
Date: Wed, 20 Feb 2013 17:48:17 +0200

On 20 Feb 2013, at 5:22 PM, Rich Kulawiec <rsk () gsp org> wrote:

On Wed, Feb 20, 2013 at 07:59:53AM -0500, Robert E. Seastrom wrote:
If only there were some kind of method for Jay to publish which
addresses are actually authorized to send mail on behalf of [snip]

SPF is snake-oil.  Here's something that works (salt to taste for
the MTA of your choice):

Connect:phonescoop.com        ERROR:5.7.1:"550 Mail refused, known forgery source"
From:phonescoop.com   ERROR:5.7.1:"550 Mail refused, known forgery source"

Because putting things into a file on your server, instead of some distributed mechanism we could refer to, makes that 
much more sense. Did you guys see this /etc/hosts thing? It's awesome! I DON'T EVEN HAVE TO RUN A DNS SERVER!!

*flamesuit*

-J

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