# IT:AD:SPF #



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* [[../|(UP)]]
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* See also:
    * [[IT/AD/Email/]]
    * [[IT/AD/SMTP/]]
    * [[IT/AD/DKIM/]]
    * https://github.com/nicanorflavier/spf-dkim-dmarc-simplified



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Sender Policy Framework (SPF) is an email validation system designed to prevent email spam by detecting email spoofing, a common vulnerability, by verifying sender IP addresses.


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## Resources ##

* http://en.wikipedia.org/wiki/Sender_Policy_Framework
* http://www.openspf.org/Tools