ScanMail™ for Microsoft™ Exchange 11.0 Online Help

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  • "Log on as batch job" policy [1]
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      • content scanning [1]
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    • incremental updates [1]
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    • creating for virtual servers [1] [2] [3] [4]
    • creating for Windows 2003 [1]
    • creating for Windows 2008 [1] [2]
    • Exchange 2007 CCR Cluster [1]
    • Exchange 2007 SCC Cluster [1]
    • Exchange 2007 SCR Cluster [1]
  • role
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  • ScanMail for Exchange Remote Configuration Server [1]
  • ScanMail for Microsoft Exchange Master Services [1]
  • ScanMail for Microsoft Exchange System Watcher [1]
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    • scan engine [1]
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    • about scans [1]
    • actions [1] [2]
    • logs [1]
    • macro scan [1]
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    • managing real-time monitor [1]
    • performing a manual scan [1]
    • update ScanMail [1]
  • security information site [1]
  • security risks [1]
    • advanced threats [1]
    • compressed files [1]
    • Denial-of-Service [1]
    • Denial-of-Service attack [1]
    • disease vector [1]
    • encoding types [1]
    • grayware [1]
    • joke program [1]
    • macro viruses/malware [1]
    • mass-mailing attack [1]
    • multipurpose internet mail extensions [1]
    • other malicious codes [1]
    • packed files [1]
    • phish [1] [2] [3]
    • spyware [1]
    • spyware/grayware [1] [2]
    • Trojan Horse [1] [2]
    • true file type [1]
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    • viruses/malware [1] [2]
    • worms [1] [2]
    • zip-of-death [1]
  • security risk scan
    • about [1]
    • actions [1] [2]
    • ActiveAction [1]
    • compressed file handling [1]
    • configuring target settings [1]
    • custom settings [1]
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    • view pattern and engine version [1]
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    • view smart scan status [1]
  • Server Management Console
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  • smart protection [1] [2] [3] [4]
    • File Reputation Services [1]
    • source [1] [2]
    • sources
      • comparison [1]
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  • Smart Protection [1] [2]
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  • Smart Protection Network [1] [2]
    • web reputation [1]
  • Smart Protection Server [1] [2] [3] [4]
  • Smart Protection sources
    • integrated server [1]
    • local source settings [1]
    • Smart Protection Server [1]
    • standalone server [1]
  • spam engine [1]
  • spam maintenance [1]
    • End User Quarantine [1]
  • spam pattern files [1]
  • spam prevention [1]
    • alerts [1]
    • content scanning [1]
    • email reputation
    • email reputation services [1]
    • End User Quarantine [1]
    • maintenance [1]
    • notifications [1]
    • spam engine [1]
    • spam pattern files [1]
  • special groups [1] [2]
  • spyware [1]
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    • adware [1]
    • dialers [1]
    • entering the network [1]
    • hacking tools [1]
    • joke program [1]
    • malware naming [1]
    • password cracking applications [1]
    • remote access tools [1]
    • risks and threats [1]
  • SQL server
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  • standalone server [1]
  • summary [1]
    • security risks [1]
    • spam tab [1]
    • system tab [1]
  • support/system debugger [1]
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  • templates [1] [2]
  • TrendLabs [1]
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    • agent [1]
    • communication protocol [1]
    • communicator [1]
    • entity [1]
    • managed product user access [1]
    • registering ScanMail [1]
    • registering to [1]
    • server [1]
    • unregistering ScanMail [1]
    • using ScanMail [1]
  • Trojan Horse [1] [2]
  • true file type [1]
  • uncleanable files [1]
  • understand
    • data views [1]
    • deployment plans [1]
    • log queries [1]
    • logs [1]
  • unregistering
    • ScanMail from Control Manager [1]
  • updates
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    • components on clusters [1]
    • download source [1]
    • latest patches FAQ [1]
    • logs [1]
    • manual configurations [1]
    • pattern file, manual [1]
    • pattern files [1]
    • rolling back [1]
    • scan engine, manual [1]
    • scheduled configurations [1]
  • updating ScanMail [1]
  • URLs
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    • Knowledge Base [1]
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    • update center [1]
  • version comparison [1]
  • viewing
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  • virtual servers [1] [2]
    • creating ScanMail resources [1] [2] [3] [4]
    • viewing from the product console [1]
  • viruses/malware [1] [2] [3]
  • Virus Scan Application Programming Interface (VSAPI) [1]
  • Virus Scan Engine [1]
    • scan engine [1]
  • web reputation [1] [2] [3] [4] [5] [6]
  • Web Reputation Services [1] [2]
  • wildcard [1]
  • wildcards [1]
  • Windows event log codes [1]
  • World Virus Tracking Program [1] [2]
    • configuring [1]
  • worms [1] [2]
  • zip-of-death [1]

Trust Scan Parent topic

Real-time scan can skip scanning email messages at the store level when the message has been scanned by ScanMail at the Hub Transport Level. This feature is available for ScanMail with Exchange Server 2010 and 2007.
Once ScanMail scans a message on an Edge or Hub Transport server, ScanMail adds scan information to the message. When the message reaches the Mailbox, ScanMail evaluates the scan information to prevent redundant use of resources. ScanMail only scans the message if the message was scanned with an older scan engine or pattern file or if ScanMail has not previously scanned the message.