Refer to the exhibit. After updating a predefined alarm on VMware vCenter, an administrator enables email notifications as shown in the attached alarm; however, notifications are NOT being sent. Where

ESXi host system configuration does not control vCenter Server's global email notification settings for alarms.

The alarm rule definition only enables or disables email as an action for a specific alarm; it does not define the SMTP server parameters.

For vCenter Server to send email notifications for alarms, the global SMTP server settings (server address, port, authentication, sender email) must be configured directly within the vCenter Server's configuration accessible via the vSphere Client. Without these global settings, even if email notifications are enabled on an alarm, vCenter doesn't know where to send them.

The vCenter Management Interface (VAMI) is primarily for appliance-level configurations like networking and updates, not for application-level email notification settings for alarms.