public Double getSpfPercentage() {
        return this.spfPercentage;
    }
<p>
The percentage of emails that were authenticated by using Sender Policy Framework (SPF) during the predictive
inbox placement test.
</p>

@return The percentage of emails that were authenticated by using Sender Policy Framework (SPF) during the
        predictive inbox placement test.
aws-java-sdk-pinpointemail/src/main/java/com/amazonaws/services/pinpointemail/model/PlacementStatistics.java