You can inform any user by sending email an e-mail in case of lost video and or audio signal lost. To set this option, you should provide the email e-mail 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.
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To is the mail address of the user that the logs are sent. “;” character is used to send email e-mails to more than one user.
And also you You can test the settings which you did by using "Send Test E-mail" button.