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Open relay

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Open relay - 3.Aug.2006 8:17:52 AM   
aivanoff

 

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How do I configure smtp connector for open relay and no authentication?
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RE: Open relay - 3.Aug.2006 8:22:32 AM   
Henrik Walther

 

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You can allow anonymous connections by adding anonymous users to the connector:

set-ReceiveConnector "Default <Servername>" -permissiongroups:"ExchangeUsers,ExchangeServers,ExchangeLegacyServers,AnonymousUsers"
 
Then specify the domains the server should relay for under Organization Configuration > Hub Transport > Accepted Domains


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RE: Open relay - 3.Aug.2006 8:44:51 AM   
aivanoff

 

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Tried it, it is not what I am looking. What I want is the ability to send emails from internal ip addresses to any domain without authentication. We had it in previous versions as Relay Restrictions under SMTP Virtual Server Properties\Access\Relay:

* Only the list below
Granted 10.1.0.0(255.0.0.0)

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RE: Open relay - 5.Aug.2006 6:15:45 PM   
aivanoff

 

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I really need a nanswer on this one.

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RE: Open relay - 5.Aug.2006 8:48:33 PM   
Henrik Walther

 

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I don't believe you can use anything other than the PermissionGroups parameter to specify the servers to be allowed.

At least not in Beta 2, you can see available parameters by issuing a Get-Help Set-ReceiveConnector in the Exchange Management Shell.


< Message edited by Henrik Walther -- 5.Aug.2006 8:49:40 PM >


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RE: Open relay - 9.Sep.2006 12:50:19 AM   
lesterw2

 

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Does that mean it cannot be done?  We won't deploy Exchange 2007 if that is the case.
 
I also want to allow Open Relay for a range of trusted IP addresses (e.g., 10.0.0.0/24) to ANY destination. Allowing open relay is common in corporate environments where various server alert applications, scanners, etc. simply connect to the SMTP port without
any authentication. Thanks.


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RE: Open relay - 25.Nov.2006 2:59:29 PM   
aivanoff

 

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I figured it out. Here is what you need:

add-adpermission "Client MachineName" -User AN –ExtendedRights ms-Exch-SMTP-Accept-Any-Recipient

Ironically, I found this in the Release Notes for Exchange 2007 Beta 2: http://download.microsoft.com/download/8/d/c/8dc5a8ca-e75e-47c0-b655-e0f82b90780d/E2K7_RelNotes.htm.

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