Filtering Internet Mail Exchange 2003

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Exchange security
Microsoft Exchange
We are in the middle of a migration from Exchange 5.5 (with no SMTP) in combination with Symantec Mail-Gear (SMTP-only used for filtering users from sending/receiving internet e-mail) to Exchange 2003. We have users who may send/receive all Internet Mail, the most may not send/receive and some have only a few addresses to send/receive. I thought i could handle this in Exchange 2003 with SMTP connectors but i?m a bit stuck. I have the article from msexchange.org `Restricting users from Sending and Receiving Internet Mail...?. Is the only method to use multiple SMTP Connectors or is their another way ? This is ok for sending, what with receiving ? Thanks in advance

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Hello,

Aside from using a third-party solution, the use of multiple SMTP connectors would be the method available in a native Exchange 2003 install.

Good luck!

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  • Mortree
    The simplest way to do this is shown on http://www.msexchange.org/tutorials/MF025.html (A simple AD user account option for Exchange). There are some alternative tricky ways to stop email by passing out illegal STMP email addresses. Of course that solution assumes you aren't setup to solely use STMP addresses internally - or are willing to set up the illegal STMP domain addresses as an alternative for internal delivery. They get more elaborate about it in KB 924635 - but basically it is hard to receive Internet email if your STMP address is. And many modern emails servers will reject your email without KB 924635 steps if your SMTP email address is illegal. Unfortuantely I've forgotten all the clever things you can do with Contacts etcetera. How can I prevent a user from sending and receiving Internet mail? Follow the steps outlined below: 1. Create a group called InternalOnly. 2. Create a recipient policy that gives them a fake SMTP address. i.e. @fake.domain. Leave the X400 address alone so they can receive internal mail. 3. Drill down through Routing Groups > Group Name > Connectors > SMTP internet connector(s), choose its properties. Choose the Delivery Restrictions tab, and under "reject", add this group. Do this for each connector. 4. Follow the steps in KB277872, regarding Connector Restrictions. [Now they can't use the SMTP connector(s) to send external mail]
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  • Mortree
    You might be able to improvise something with Group Policies and Outlook Junk email settings (Safe Senders, Safe Recipients, Blocked Senders). True knowledgable and persistent types may get around it. But then webmail, etcetera will let them send and receive Internet email more easily anyway. http://office.microsoft.com/en-us/assistance/HA011402621033.aspx
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