You can inform any user by sending email in case of video and audio signal lost. To set this option, you should provide the email address and password of the sender.
You can reach E-mail tab by clicking Tools > Options > E-mail .
Enable e-mail option activates all the options about e-mail settings. By checking the appropriate option just below the Enable e-mail checkbox, you can send alerts about video and audio signal lost via email.
Server is the name of the mail server.
Port No is the port the mail server uses to send the mails.
By checking Use SSL, Secure Sockets Layer (SSL) protocol is activated.
User is the mail address of the sender; Password is the password of the sender.
To is the mail address of the user that the logs are sent. “;” character is used to send email to more than one user.
And also you can test the settings which you did by using "Send Test E-mail" button.