Insufficient permissions for setting the configuration property 'port'.

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ASP.NET

Keep getting the error:

"Insufficient permissions for setting the configuration property 'port'."

Dim client As SmtpClient = New SmtpClient()

client.DeliveryMethod = SmtpDeliveryMethod.Network
client.EnableSsl = "True"
client.Send(msg)

I get the error on this line:

<system.net>
     <mailSettings>
          <smtp from="user@live.com">
               <network host="smtp.live.com" port="587" userName="user@live.com" password="pass" defaultCredentials="false" />
          </smtp>
     </mailSettings>
</system.net>

I am certain the port=587 is correct.

Tried 25, 80, 2525 and 8080 and they did not work.

I think it has something to do with the "Encryption Connection (SSL)" but I thought I had addressed it with "client.EnableSsl = 'true'".