Configure custom content filter

Steps

  1. Configure whether to trigger the filter on the match of a single condition or on all defined conditions; from the section Filter Properties, click the radio button Match all conditions or Match any condition.
  2. Specify the conditions; from the section Filter Conditions, click Add. The Add Condition dialog box displays.
  3. In the Add Condition dialog box, select the message attributes and operators to configure the custom filter.

    The following table displays all available message attributes and operators. All message attributes except DKIM verification include the user-configurable entry field Filtering criteria.

    Message Attribute Operator Options Additional Options
    Sender IP address Is, Is not None
    Envelope sender Contains, Does not contain, Matches regular expression, Does not match regular expression None
    Envelope recipient Contains, Does not contain, Matches regular expression, Does not match regular expression None
    Number of envelope recipients Equals, Does not equal, Is less than, Is greater than None
    From field address Contains, Does not contain, Matches regular expression, Does not match regular expression None
    To field address Contains, Does not contain, Matches regular expression, Does not match regular expression None
    Cc field address Contains, Does not contain, Matches regular expression, Does not match regular expression None
    Message subject Contains, Does not contain, Matches regular expression, Does not match regular expression Match case
    Message header: partial Contains, Does not contain, Matches regular expression, Does not match regular expression Message attribute text (user configured), Match case
    Message header: complete Contains, Does not contain, Matches regular expression, Does not match regular expression Match case
    Message body text Contains, Does not contain, Matches regular expression, Does not match regular expression Match case
    Message size Equals, Does not equal, Is less than, Is greater than Filtering criteria is in KB
    DKIM verification result DKIM verification is successful, DKIM verification failed None
    True Source IP Is, Is not None
    Digital Fingerprinting analysis result Is spam, Is clean None
    LexiRules analysis result Is spam, Is clean None
    Heuristics analysis result Equals, Is less than, Is greater than Enter a floating-point value from 0–25. For example, the value 6 corresponds to a heuristics analysis level of Medium.
    Email hybrid service analysis result (available only when your subscription includes the Email Hybrid Module) Equals, Is less than, Is greater than Enter a floating-point value from 0–25. For example, the email hybrid service uses a threshold value of 6 to designate a message as spam.
  4. Click OK.
    The Add Condition dialog box closes and the conditions are added to the Filter Conditions list.
  5. Change the order of filter conditions; mark the check box next to the filter in the Filter Conditions list and click Move Up or Move Down.
  6. Delete a set of filter conditions; mark the check box next to the filter in the Filter Conditions list and click Remove.
  7. Configure additional filter settings and click OK.
    The custom content filter settings are saved.