Procedure

1. Go to Policy → Approved List.
   The DKIM Approved List tab appears.
2. Select the Enable the DKIM Approved List for use in policies check box.
3. Populate the list with known safe domains.
   Manually:
   1. Specify a domain name.
   2. Click Add.
   Import a list:

   Note When importing a text file for the DKIM Approved List, only one domain should be on each line.

   1. Click Import.
      The Import DKIM Approved List appears.
   2. Click Browse to locate the file to import.
   3. Select one of the following:
      • Merge with current list
      • Overwrite current list
   4. Click Import.
4. Click Save.