Mimecast Web Security: Configuring an Advanced Security Policy

Document created by user.oxriBaJeN4 Employee on Apr 24, 2019Last modified by user.oxriBaJeN4 Employee on Jul 23, 2019
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This guide describes how to configure advanced security options (e.g. SafeSearch, Web Proxies).


To configure an advanced security policy:

  1. Log on to the Administration Console.
  2. Click on the Administration menu item.
  3. Select the Web Security | Policies menu item. A list of policies is displayed.
  4. Click on the Create New Policy button.
  5. Complete the Policy Details dialog as follows:
    Field / OptionDescription
    NameEnter a name for the policy.
    TypeSelect Advanced Security. This allows you to configure advanced options (e.g. SafeSearch, Web Proxies).
  6. Click on the Next button.
  7. Configure the Settings for the selected policy type.
  8. Click on the Next button.
  9. If required, toggle the SafeSearch setting on for one or more of the listed sites.
    When SafeSearch is enabled, it helps block explicit images, videos, and websites from search results. While SafeSearch isn't 100% accurate, it can help your organization avoid explicit and inappropriate search results on user's phones, tablets, and computers.
  10. Click on the Next button.
  11. Optionally toggle on the Newly Observed Domains setting to block newly observed domains that might be malicious.
  12. Click on the Next button.
  13. Configure the Web Proxy settings:
    Web ProxyToggle this setting to enable proxying of suspicious sites. This allows SSL inspection, URL categorization, and antivirus scanning.
    This option must be enabled to display the Antivirus Scanning setting below:
    Antivirus ScanningToggle this setting to enable / disable antivirus scanning. If enabled, proxied traffic is scanned for malware.
    This option must be enabled to display the Unscannable Content setting below.
    Unscannable ContentSelect to Block or Allow files which cannot be scanned due to encryption or corruption.
  14. Click on the Next button.
  15. Select who the policy applies to:
    You can add multiple locations, users, and groups to a single policy, making it easier to configure and manage your Web Security policies.
    • Everyone: The policy applies to all users in your organization.
    • Location: The policy applies to all users defined in a location. See the Mimecast Web Security: Configuring Locations page for further details.
      1. Click on the Select Location button.
      2. Select a Location from the list, or use the search tool to find one.
    • Group: The policy applies to a group of users.
      1. Click on the Select Group button.
      2. Select a group from the Active Directory Groups or Local Groups tab.
    • User: The policy applies to an individual user:
      1. Click on the Select User button.
      2. Select the User from the list displayed, or use the search tool to find them.
  16. Click on the Next button.
  17. Review the Summary displayed to ensure all details are correct.
  18. Click on the Create Policy button. The new policy is displayed.


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