On 2/21/08, Dov Zamir wrote:

>  SPF DNS records are now mandatory. Hotmail announced that they would not
>  receive any mail from a source with no SPF record from the first day it
>  became mandatory a couple of years ago, but did not actually carry out
>  the threat at that time, however, it seems that they may now be
>  implementing this. An SPF record supposedly reduces spammers ability to
>  spoof your domain.

SPF is fundamentally broken, in many ways.  It was so in 2004, and it 
is still so today.

See <http://bradknowles.typepad.com/considered_harmful/2004/05/spf.html>.


Besides, Windows Live insists on SenderID, not SPF.  You should do 
your homework.


Either way, if Windows Live Hotmail wants to isolate themselves from 
the rest of the world as a result of a technology like this, then 
they will get what they deserve.

-- 
Brad Knowles <[EMAIL PROTECTED]>
LinkedIn Profile: <http://tinyurl.com/y8kpxu>
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