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Habeas » en-US » Support » Knowledge Base » Sender Authentication » What is the significance of the SPF checker responding with a result of "Neutral"? » 
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What is the significance of the SPF checker responding with a result of "Neutral"?

Most often a "Neutral" response to an SPF check is caused by an "?all" mechanism which is an explicit directive to interpret the SPF records as neutral -- neither pass nor fail.



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