Server Monitor 

Server Monitor is a Windows service that monitors the health and availability of Windows servers, network services (on Windows, Linux and other operating systems), and devices. No agents are needed to monitor remote servers.
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eeMailer- Alert Notification Sender 

Email sender (SMTP server) can be used by 3rd party software programs to send system alert notifications, SMS alerts, e-Commerce, security alerts, direct (bulk) mail, email notifications and alerts
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