Contact Support is an option on the Help menu.
To disable the Contact Support option, follow these steps.
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On your Mac, select
to open Spotlight.
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Type "Terminal" > Return.
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Type the following command, and then press Return:
Defaults write com.microsoft.Outlook DisableContactSupport -bool TRUE
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Quit and restart Outlook (Outlook > Quit Outlook). When you select the Help menu, you'll see that the Contact Support option is gone.
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To reinstate the Contact Support option, type this command, and then quit and restart Outlook:
Defaults write com.microsoft.Outlook DisableContactSupport -bool FALSE
