Configure antivirus filter analysis

Steps

  1. From the section Filter Properties, mark the check box for one or both options under Filter analysis:
    • Treat errors as infected

      If antivirus analysis encounters errors, the email is handled as if is infected. This setting is enabled by default.

    • Analyze message body for viruses

      The message content is analyzed for embedded malicious scripts or attachments that cannot be examined properly. If message format problems cause attachments to be viewed as part of the message body, the attachments are analyzed and viruses are detected. This setting is disabled by default.

  2. From the section Filter Properties, select one or both of the options under Tools:
    • Standard analysis

      Performs standard email content and attachment analysis for virus threats.

    • Advanced analysis

      Performs email attachment analysis for Microsoft Office documents and macros.

      Either one or both types of analysis can be selected, along with the sensitivity level of each analysis type. If you select both types of analysis, standard analysis is performed first, then advanced analysis. The higher the sensitivity level, the larger the volume of email that is designated as virus. Enabling the advanced antivirus engine may affect system performance.

  3. From the section Sensitivity Level, select Low, Medium, or High.
  4. From the section Filter Properties, select one option under Filter response:
    • Remove infected attachments

      Deletes the attachment that triggers the antivirus filter.

    • Take no action

      This is the default action. The attachment and virus are stored in a predefined location (see Creating and configuring a filter action). If required, a message may be sent to the administrator stating that a virus has been found.

  5. From the bottom of the section Filter Properties, click Advanced.
    The Advanced settings display. These settings are used to add a notification to a suspected virus email, to alert the recipient that the message may be infected.
  6. Mark the check box Notify recipient that the delivered email message may contain a virus.
  7. In the text box, enter the desired notification text.
    The maximum length is 8192 characters total, up to 990 characters per line; a line break is two characters.
  8. Select where the notification should appear; Insert notification at top of message or Insert notification at bottom of message.
    The default location is at the top of the message.
  9. Configure additional filter settings and click OK.
    The antivirus filter settings are saved.