Before you remove the installation of an old Exchange Server (2007/2010) you may want to make sure that there is no SMTP procotol activity anymore. (For example multi functional printers who still have the old IP adres or something like that)
First enable protocol logging on the Receiver Connectors, use therefore the following command :
Set-ReceiveConnector “Connector Name” -ProtocolLoggingLevel verbose
Do the same for the send connector(s) :
Set-SendConnector “Send Connector Name” -ProtocolLoggingLevel verbose
And the transport server for the Intra-Organization Send Connector :
Set-TransportServer “TRANSPORT SERVER NAME” -IntraOrgConnectorProtocolLoggingLevel verbose
Now you can find the Receive/Send Connectors in the following (default) locations :
<Exchange Server>\V14\TransportRoles\Logs\ProtocolLog (EX2010)
<exchange server>\Exchange Server\TransportRoles\Logs\ProtocolLog (EX2007)