Looking to make a rule for external emails to 10 or more users RRS feed

  • Question

  • Hello,

    I am looking to make a rule that states the following:

    Anyone Outside the organization that emails 10 or more users Internally has to be redirected to me for approval.

    I am able to find the Outside the Organization in the create rule guide and have it set to forward to me for approval. My problem is, how can I find the option that states "10 or more users" without being specific on the users.

    Any help? Thanks in advance.

    Thursday, April 16, 2020 2:42 PM

All replies

  • You cannot achieve this with transport rules, as there is no condition to detect the number of recipients. You will need to create a custom transport agent.
    Thursday, April 16, 2020 5:12 PM
  • Hi,

    Do suggestions above help? If you have any questions or needed further help on this issue, please feel free to post back. If the issue has been resolved, please mark the helpful replies as answers, this will make answer searching in the forum easier and be beneficial to other community members as well.


    Joyce Shen

    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    Thursday, April 23, 2020 1:08 AM