On Thu, Jun 01, 2006 at 01:32:14AM -0400, Seth Breidbart wrote
"Walter Dnes" <waltdnes(_at_)waltdnes(_dot_)org> wrote:
Real-life question...
1) How does any ISP (beyond a really small geek outfit) verify that I
am authorized to use *(_at_)waltdnes(_dot_)org ?
Ask postmaster(_at_)waltdnes(_dot_)org
Being "master of my domain", I can personally answer that question on
my own behalf. Would Google or Yahoo be able to verify to example.com
that Joe Blow is authorized to send out email as joeblow(_at_)yahoo(_dot_)com or
joeblow(_at_)gmail(_dot_)com when sending email from example.com? Manual
confirmation doesn't scale. Automating it opens up the potential for
address harvesting.
--
Walter Dnes <waltdnes(_at_)waltdnes(_dot_)org> In linux /sbin/init is Job #1
My musings on technology and security at http://tech_sec.blog.ca
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