The Spam, Phishing, Graymail, Web Reputation, Social engineering attack, or Unusual signal criteria allow you to create policy rules that take actions on these types of potentially
               unwanted messages.
NoteCloud Email Gateway
                                 Protection does not
                              apply content-based heuristic spam, BEC, phishing, graymail, Web reputation,
                              social engineering attack, or unusual signal rules to email messages received
                              from email addresses and domains listed on the Approved
                                 Senders screen. 
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