Any notice that is generated on the system is automatically emailed to the admin users email address.
You can set that by going Setup -> User Management.
If you are still not receiving the emails you may need to configure an SMTP server under Setup -> Configuration -> Email Configuration -> Email Setup.
We support all the various authentication and encryption types so you just need to configure the correct settings for your environment.
On the email status page, there is an option to send a test mail with the settings you set up.