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Exchange 2007 SMTP Transport Rule

Posted on 2008-10-09
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Last Modified: 2012-05-05
I need to secure my SMTP connector to the internet, so that only a few people can use it. In Exchange 2003 I would have used the security on the SMTP connector itself to do this. With 2007 I have to make the conenctor and then use a transport rule.

However, if I do that I have to turn axccess on (connector active) and then disable people via a Transport Rule to prohibit there access to the internet. I want to reverse that to where no one can e-mail the internet unless they are in the correct group.

Does anyone know of a rule or rules that will accomplsih that?

Maybe rule 1 that blocks everyone and then rule 2 that allows select few? Any ideas are appreciated.

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Question by:mhorrocks
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by:Bertling
ID: 22685687
i think the best way is to create the rule as you said which will block users of a distro group to send mail and add all your users to it. any users that you want to be able to reach outside world just remove them as a memeber of that distro group.
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by:mhorrocks
ID: 22686892
That's too risky, because you have to remember to add new users to the group and until you do they have internet mail. It's always safer to deny all and then allow those you know for certain are allowed in. It's also a tough sell to management because Outlook 2000/2003 handles this perfectly and none its gone - doesn't make sense.
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Accepted Solution

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mhorrocks earned 0 total points
ID: 22714654
I resolved this on my own.

I made the rule to say that all external mail is dropped, unless member of distro group X and that worked liked a champ.
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