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spf in dns survey
Hi all

Thought you might be interested in this from Cricket Liu's
executive summary of "The 2007 DNS Survey, performed by The
Measurement Factory and commissioned by Infoblox" ...

| Other Interesting Findings: Significant Interest in Email Authentication
|
| Support for SPF was a highlight, more than doubling from about 5%
| of zones sampled to 12.6%. Clearly SPF has significant momentum.
|
| Implications: Thanks to the network effect, the more zones that use
| SPF, the greater the value in implementing SPF (e.g., the larger the
| percentage of email you can verify). SPF’s popularity has the
| chance to snowball. I believe SPF’s success also bodes well for
| the prospects of DKIM, which like SPF uses DNS to store email
| authentication information.

<http://forms.infoblox.com/go/infoblox/dnssurvey2007cricket>
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