Restrict the Number of Recipients per Message in Exchange 2010

Posted on 2014-08-13
Last Modified: 2014-08-20
hello, i want to limit the number of recipients that our mailbox users can send in a email (to and cc, forward etc), we use exchange 2010, i already find the option in the mailbox properties In <Mailbox> Properties, on the Mail Flow Settings tab, the Delivery Options, and i can edit the Maximum recipients, it seams to work fine and be pretty basic on the test that i do.

My question is, can we restrict the number of recipients for the internal user (mailbox in our organization) and not restrict the external email (email for people outside of our organization), by this i want to be able to send to the external email all the recipient that i want, but i want to restrict the number of recipients of the mailbox in my organization ?

also if you guy's know something about this options that you think can help me, or something that i should know, please feel free to tell me.

thanks for your help
Question by:Dalton111111
    LVL 24

    Accepted Solution

    Refer to and you might be able to do it if you have different receive connectors for internal for external messages.

    Author Comment

    do you know if this option block TO, CC, BCC and the groups distribution ?

    LVL 24

    Expert Comment

    by:Mohammed Khawaja
    I believe it does (at least that is what I have been told).

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