Davisons Law

Either:

1. Open Outlook -> Top Left File -> Options -> Add-ins -> Click Go -> Tick CASAOutlookAddIn -> Press OK

2. Open Outlook -> Top Left File -> Options -> Add-ins -> Drop down Menu by Manage -> Change dropdown to disabled items -> Click Go -> Enable CASAOutlookAddIn -> Click Close -> Drop down by Manage -> Change dropdown to COM Add-Ins -> Click Go -> Tick CASAOutlookAddin -> Press OK

3. Open File Explorer -> Go to This PC -> Go to Shared Drive -> Go to '1.Important Office Documents' -> Go to CASA -> Click only available folder until you reach 'Setup' -> Double Click and Install 'Setup' -> Close and Reopen Outlook