Enabling the whitelist Active Content Filter

You can enable a whitelist filter as the Active Content Filter (ACF) in Domino. The ACF is used to remove potentially harmful active content from HTML messages such as JavaScript, Java, and ActiveX. A whitelist filter removes all entities except those in the whitelist. A blacklist filter (used by default) retains all entities except those in the blacklist.

About this task

Blacklist filters need to be maintained to continually guard against threats from new markup patterns. Whitelist filters are considered a security best practice because they are explicit about the patterns that are allowed.

The whitelist filter is applied to HCL iNotes® and HCL Verse messages but not to HCL Notes® messages.

Procedure

  1. By default, the blacklist filter is used. To enable iNotes® and Verse to use the whitelist filter instead, add the following notes.ini setting to Domino mail servers:
    DOMINO_ENABLE_WHITELIST_ACF=1
  2. Optional: To allow individual users to choose between the whitelist and blacklist:
    1. Have a user copy the following URL parameter to the browser to use when logging on to mail, depending on your client:
      Verse:
      <mailfile_url>?whitelist-acf=0
      iNotes:
      <mailfile_url>?OpenDatabase&whitelist-acf=0

      If your site redirects logins, for <mailfile_url>, specify the redirect URL.