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We suggest that a Confidence Factor of 90 or above indicates that the email address is "secure". with MTASTS and DANE testing) best-in-class email system would get. The Confidence Factor line shows the numerical grade of the target, the maximum grade the target could get, the grade's percent of maximum, and what grade a fully tested (e.g. It computes a single number for the given email address that is our opinion on how securely it will receive email.
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For domains with multiple email servers (MX hosts), it weighs how many there are and their preference. It takes into account all the security information gathered while it was connected with the recipient's email system. This is our "grade" (zero to 100) for the recipient's email system.
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For all Output Levels TestReceiver shows our unique Confidence Factor.
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