When defining an email addressed within "Set Default Email" option in the agent alarm administration dashboard, the email address is also stored in a registry variable corresponding to its database cartridge type
The defined default email notifications should be in DBO_DefaultEmailSetting, DBSS_DefaultEmailSettings or DB2_DefaultEmailSettings,
Beginning in Cartridge for SQL Server 18.104.22.168 there is also: SSRS_DefaultEmailSettings, SSIS_DefaultEmailSettings and SSAS_DefaultEmailSettings.
Variables may also be present for other database cartridges: Cassandra_DefaultEmailSettings, MongoDB_DefaultEmailSettings and MySQL_DefaultEmailSettings.
a. For issues when no notifications are received, requiring a re-syncing of the email address
b. For issues when no notifications are received and errors display in the Management server logs such as: