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Djavan ROA's avatar
Djavan ROA
Brass Contributor
Jan 28, 2020

Rule to force BCC with a Distribution List

Hi,

I'm trying to build a rule to reject a message with explanation when a given Distribution List is used in fields "To" or "CC". The goal is to force users to use "BCC" with this DL.

 

So far I found the header "X-MS-Exchange-Organization-BCC" could eventually help but I'm not sure how to use it.

Help appreciated 🙂

  • Victor_Ivanidze's avatar
    Victor_Ivanidze
    Bronze Contributor

    Hi Djavan ROA,

     

    try to use a transport rule with condition

     

    "When the recipient is a member of 'yourgroup'"

     

    and  exception

     

    "The To or CC box contains a member of 'yourgroup'"

     

     

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