12.3 Digitally Signing or Encrypting All Items

  1. Click Tools > Options.

  2. Double-click Security, then click the Send Options tab.

    Security dialog box with the Send Options tab open

  3. Select Sign digitally or Encrypt for recipients.

  4. Click Advanced options, then make selections. Click What’s This icon, then click an option for more information about each option.

  5. Click OK twice, then click Close.