#Define the variable with your banner. It should start with 220 #and contain the public name of your exchange server $MyBanner = "220 webmail.netometer.com ESMTP Send us your mail, but not your spam." #Get the names of your existing connectors Get-ReceiveConnector #Set the banner that you have specified for the default receive connector #To avoid typing errors copy the name of the connector from the output #of Get-ReceiveConnector command and paste it in the Identity option Set-ReceiveConnector -Identity "EX-2K7\Default EX-2K7" -Banner $MyBanner #Use the $null variable instead of $MyBanner to reset the SMTP banner to its default message Set-ReceiveConnector -Identity "EX-2K7\Default EX-2K7" -Banner $null