DescriptionThis article describes how the dictionary function can be used to block an exact phrase.
Solution1) Profile > Dictionary, new.
2) Add new Dictionary entry - type: regex/wildcard, pattern: ^\s*$, check only in body!/header Save entry and dictionary.
3) Create content profile (Profile > Content) or edit existing content profile. In "Content Monitor and Filtering" click new, select the Dictionary entry that was created in step 2 and appropriate Action.
4) Add Content Profile to IP policy or Recipient Policy - depending upon user requirements.