-`advfilter`: `<boolean>` ('default =' `1`)::
+`advfilter`: `<boolean>` ('default =' `0`)::
-Use advanced filters for statistic.
+Enable advanced filters for statistic.
++
+If this is enabled, the receiver statistic are limited to active ones
+(receivers which also sent out mail in the 90 days before), and the contact
+statistic will not contain these active receivers.
`avast`: `<boolean>` ('default =' `0`)::
Demo mode - do not start SMTP filter.
+`dkim_selector`: `<string>` ::
+
+Default DKIM selector
+
+`dkim_sign`: `<boolean>` ('default =' `0`)::
+
+DKIM sign outbound mails with the configured Selector.
+
+`dkim_sign_all_mail`: `<boolean>` ('default =' `0`)::
+
+DKIM sign all outgoing mails irrespective of the Envelope From domain.
+
`email`: `<string>` ('default =' `admin@domain.tld`)::
Administrator E-Mail address.