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GianniAzure's avatar
GianniAzure
Copper Contributor
Jul 04, 2023

Disable Outlook Mentions Company Wide

Hi Everyone,

 

We have a customer who wishes to disable @ mentions in Outlook. They share very confidential information so do not want to risk this information being sent to the wrong person.

In respect to this, we have a deployed a policy that applies the reg key 'ShowAutoSug' with a value of 0 and that works well.

However, I am looking for a way to disable @mentions company wide.

I of course know the setting individually within the Outlook client but cannot see any ADMX entry or Registry DWord I can use to disable this en-masse.

I speculated this was maybe a 365 tenant change instead but cannot see anything confirming that either.

Any guidance would be much appreciated.

For clarity, attached is a screenshot of the Outlook setting I am trying to deploy company wide (either through GPO/Registry)

 

  • I know it's 1 year too late, but hey, I hope it helps someone else in the future:

    [HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Outlook\Options\General]
    "ShowAtMentionSuggestions"=dword:00000000
  • I know it's 1 year too late, but hey, I hope it helps someone else in the future:

    [HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Outlook\Options\General]
    "ShowAtMentionSuggestions"=dword:00000000
    • GianniAzure's avatar
      GianniAzure
      Copper Contributor

      Toncia_Vladislav Thanks for commenting, much appreciated

      We no longer have a requirement to implement that but I've tested your answer and it works as desired.

      Thanks for the helpful reply.

    • EricY2195's avatar
      EricY2195
      Copper Contributor
      What can I do if I don't have the "General" section under Options on that registry path? I've attempted to have the GPO set to "create" in the hopes that it would write the value, but that doesn't appear to be working for me. I've added the most recent ADMX files to the DC as well. No luck here.
  • GianniAzure 

    How about considering force configuration in Outlook?

     

    Open Outlook > File > Options > Mail > Send Messages > Uncheck “Suggest names to mention..”

    • GianniAzure's avatar
      GianniAzure
      Copper Contributor
      Please could you expand on that?
      That is the setting I want to enforce, how would I force that configuration to all users/devices?

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