This plugin checks the headers for indication that sender's domain is that of a site offering free email services.


Area Test name Description Default scores
header FREEMAIL_FROM Sender email is freemail 0.001
header FREEMAIL_FORGED_REPLYTO Reply to is forged 1.199 2.503 1.204 2.095
header FREEMAIL_ENVFROM_END_DIGIT Envelope-from freemail username ends in digit 0.25
header FREEMAIL_REPLYTO_END_DIGIT Reply-To freemail username ends in 0.25

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