Alarm emails are still being sent to a recipient even after disabling the notification
After disabling the notification for rules, alarm emails are still being sent.
Things to check:
Go to "Administration | Email Configuration". Check if "Email Routing" has been setup for specific notifications.
Identify which Rule/Alarm is being fired then go to "Administration | Rules & Notifications | Rule Management". View and edit the rule. Check the condition's "Action" tab and see if EmailAction is set. Then go to "Severity Level Variables" and examine the "To" variable and note that registry variable it is referencing. Open that registry variable from the "Manage Registry Variables" page and check whether the email address is set on the default value.
Examine the email alarm sent and look at the subject and its contents. If it mentions something about Foglight Service then most probably you have set email notifications for Services. To check go to "Services | Service Builder" and check each services (Java EE, All Java EE Systems) and see if your email is configured. Delete them if required.