In Vista (Home Premium) when you are developing on your workstation, you can not sent email. Because Vista does not support a local smtp server. (like Windows XP)
But you can use Free SMTP! Download this tool, run this tool and start your solution and now you can sent mail.
Remark: if you have running another tool which manipulates the locates host (for example Yahoo pops) you have too close them.
Deserializing JSON to a string or a value
6 days ago