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  • Restrict some users to Internal mail

    We have around 2500 mailboxes. We have around 50-100 users that we would like to give internal mail access only. We do not want them sending and recieving outside mail.

    We have several mail domains on our cluster. We would like to avoid the overhead of user based filtering. Within Exchange, is there a way to restrict the way I described based on Domain name? Give the restricted users addy's like [email protected]l instead of @ourcompany.com. This would seem like a lower ovehead way to me.

    Thanks

    PS We would like to NOT add more servers. With clustering and our Disaster Recovery site, each new server = 4 total servers.
    Last edited by foze.bear; 16th August 2007, 13:03. Reason: important addition

  • #2
    Re: Restrict some users to Internal mail

    Try the next solution:
    http://www.msexchange.org/tutorials/MF025.html
    CNE 5, CCA, MCSE NT4.0-2003, MCSE 2003 messaging, Exchange Server MVP.
    Tzahi Kolber - IT Supervisor
    Polycom Israel.

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    • #3
      Re: Restrict some users to Internal mail

      That keeps users from receiving outside main, but not sending. Also doesn't this make exchange check the user of each message going thru, and cause lots of added overhead?

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      • #4
        Re: Restrict some users to Internal mail

        Originally posted by foze.bear View Post
        That keeps users from receiving outside main, but not sending. Also doesn't this make exchange check the user of each message going thru, and cause lots of added overhead?
        the article is entitled "Restricting Users from Sending and Receiving Internet Mail"

        maybe you missed the link on the page that tells you how to block the sending...

        Blocking users from sending Internet based mail in Exchange 2003 is exactly the same as it is in Exchange 2000, you simply need to create an SMTP Connector and set the restrictions on it as described in the Exchange 2000 article here.
        its easier to beg forgiveness than ask permission.
        Give karma where karma is due...

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        • #5
          Re: Restrict some users to Internal mail

          I saw the link, but the following quote is what I am trying to avoid:

          Connector restriction checking is turned off by default because it can significantly affect performance to expand distribution groups and check the restrictions for each message that passes through the system. If possible, turn on this setting on where it is necessary

          Does anyone know how to do this based on the domain name of the address. I do not want to use up our growth potential by checking EACH message so I can keep a restriction on less than 10% of my users.

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          • #6
            Re: Restrict some users to Internal mail

            The SMTP connector method is the ONLY way to restrict sending of email messages. There are no alternatives.

            You cannot restrict based on the sending domain of the user. Exchange doesn't look at that at all.

            Simon.
            --
            Simon Butler
            Exchange MVP

            Blog: http://blog.sembee.co.uk/
            More Exchange Content: http://exchange.sembee.info/
            Exchange Resources List: http://exbpa.com/
            In the UK? Hire me: http://www.sembee.co.uk/

            Sembee is a registered trademark, used here with permission.

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