>I have Moniterz Pro and the email alert doesn't seem to work
>for me. Do I need to configure my system somehow to allow
>Moniterz to send an email when a site goes down?

You need to correctly specify the "Use SMTP server" parameter.
It is an IP address or a host name of a SMTP server you use to send mail.
You may find it in your e-mail program settings.
Usually it looks like mail.your-isp.com...

Kirill