The mail server settings are configured in-order to send alert email notifications.
Configuring Mail Server Settings
Click on "Admin" Tab -->> "Mail Server Settings" (Under General Settings)
Specify the "Mail Server" and "Mail Port" in the respective boxes provided.
Check against the "Authentication" and enter 'Username' and 'Password' of the Mail Server to avoid anonymous login.
In the "From" Address field enter the e-mail address from which you are likely to receive the report mails.
Click on "Save Changes".
Your mail server has been configured.
To verify your mail server settings you can send a test email from the "Send Test Mail" Link. A test email will be delivered to the "recipient email addresses" entered here from the configured Mail Server.