IMSS reprocesses notification email messages for security
               reasons. Therefore, if a notification email message was quarantined due to a policy
               violation, the notification email message generated by IMSS would not have a message ID. 
            
            If you do not want IMSS to
               scan the notification email messages, you can disable notification
               email message scanning:
            
            
               - 
                  
Modify the following setting in the [general-notification]
                     section of the imss.ini: 
                  
                  NotificationSkipScan=1
                
               - 
                  
Restart the IMSS daemon by typing the following
                     commands:
                  
                  
                  net stop TmImssScan
                  
                  net start TmImssScan
                
               - 
                  
Restart the IMSS Scan
                     Service as follows:
                  
                  
                  
                     
                        
                             | 
                           
                              Note
                              
                                 Trend Micro recommends against disabling the scanning for notification email messages.
                                    
                                  
                               
                            |