Send Connector
Although Send-Connector properties exist at the Organizational Level (versus Server Level) and are stored in the configuration partition of Active Directory, it is necessary to modify one Send-Connector setting manually.
I noticed that users whose mailbox was moved to the E2K10 server could not send to external recipients. This was because the E2K10 server must be listed as one of the source servers in the Send-Connector properties. In the EMC, this can be configured under the "Source Server" tab.
In the EMS, this is what displays before the E2K10 server is added to the list of source servers:
Get-SendConnector | fl sourcetransportservers
SourceTransportServers : {ex1}
This is the cmdlet that will add the E2K10 server to the list:
Set-SendConnector -Identity 'MYNET-SendConn-1' -SourceTransportServers 'ex1','EX10C'
Now both servers are in the list:
Get-SendConnector | fl sourcetransportservers
SourceTransportServers : {EX10C, ex1}
Receive Connector
In Exchange 2010, by default, the default Receive-Connector will refuse messages from anonymous senders. Since most or all users outside the Exchange organization qualify as "anonymous", this setting must be modified if we want users to receive mail from external or outside senders.
Let's compare the Receive Connector settings on the E2K7 and the E2K10 servers:
Exchange 2007 server
Get-ReceiveConnector "ex1\Default EX1" | fl *permission*
PermissionGroups : AnonymousUsers, ExchangeUsers, ExchangeServers, ExchangeLegacyServers
Exchange 2010 server
Get-ReceiveConnector "Ex10C\Default EX10C" | fl *permission*
PermissionGroups : ExchangeUsers, ExchangeServers, ExchangeLegacyServers
In the EMC, we would see this:
The E2K10 server lacks the "AnonymousUsers" permission group. We can correct this with the following command:
Set-ReceiveConnector "EX10C\Default EX10C" -PermissionGroups "AnonymousUsers, ExchangeUsers, ExchangeServers, ExchangeLegacyServers"
Now the E2K10 server has the correct Receive-Connector permissions:
Get-ReceiveConnector "Ex10C\Default EX10C" | fl *permission*
PermissionGroups : AnonymousUsers, ExchangeUsers, ExchangeServers, ExchangeLegacyServers
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