TROUBLESHOOTING

Error When Installing Outlook Plugin: "Customized functionality in this application will not work because the certificate used to sign the deployment manifest for GoToMeeting Outlook Calendar Plug-in or its location is not trusted."

Issue

The error message "Customized functionality in this application will not work because the certificate used to sign the deployment manifest for GoToMeeting Outlook Calendar Plug-in or its location is not trusted. Contact your administrator for further assistance" comes up when trying to install the Outlook Plugin.
User-added image

Objective

Environment

  • GoToMeeting
  • Windows 10
  • Outlook 2013
  • Outlook 2016

Procedure

Answer

Cause

Resolution

  1. Open Internet Explorer
  2. Click on Menu (small gear at upper right)
  3. Select Internet Options
  4. Select Security tab
  5. Select Trusted Sites
  6. Click Sites
  7. In Add this website to the zone: box, type builds.citrixonlinecdn.com
  8. Click Add
  9. Click Close
  10. Click OK
  11. Reinstall plugin

Additional Information