How to notify the users that they are adding/sending an email to an external recipient/receiver for Outlook & OWA from admin GUI or any PowerShell or MS Graph?

Vinod Survase 4,781 Reputation points
2023-08-13T15:52:40.9833333+00:00

How to notify the users that they are adding/sending an email to an external recipient/receiver for Outlook & OWA from admin GUI or any PowerShell or MS Graph?

Note: I would want to enable this as admin for whole tenant and manage it.

Exchange Online
Exchange Online
A Microsoft email and calendaring hosted service.
6,187 questions
Outlook | Windows | Classic Outlook for Windows | For business
Microsoft 365 and Office | Install, redeem, activate | For business | Windows
0 comments No comments
{count} votes

Accepted answer
  1. Yuki Sun-MSFT 41,376 Reputation points Moderator
    2023-08-14T06:16:38.4566667+00:00

    Hi @Vinod Survase ,

    How to notify the users that they are adding/sending an email to an external recipient/receiver for Outlook & OWA from admin GUI or any PowerShell or MS Graph?

    Aside from the method shared by Manu, You can also connect to Exchange Online Powershell and then run the command below to turn on the External Recipients MailTip:
    Note: It may take some time for the change to take effect.

    Set-OrganizationConfig -MailTipsExternalRecipientsTipsEnabled $true
    
    

    Reference:


    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.


2 additional answers

Sort by: Most helpful
  1. Manu Philip 20,206 Reputation points MVP Volunteer Moderator
    2023-08-13T16:33:37.0233333+00:00

    You may use the following mail flow rule to send a notification to the sender, if they send an email to an external recipient by any of method

    User's image


    --please don't forget to upvote and Accept as answer if the reply is helpful--

    2 people found this answer helpful.

  2. Arjen van den Berg 0 Reputation points
    2024-09-25T07:46:46.54+00:00

    I didn't find the action of: Notify the sender with a Policy Tip in mail flow rule.

    Same.

    0 comments No comments

Your answer

Answers can be marked as Accepted Answers by the question author, which helps users to know the answer solved the author's problem.