An email about an alert was not sent successfully to the administrator with the specified email address.
Server operation continues.
Use QUERY MONITORSETTING command to see the current settings for emailing an alert. Check that the administrator's email address and SMTP host server name are correct. Check that the SMTP port is correct. Fix any incorrect settings. The next alert that is triggered will use the new configuration settings. You can also check the server's ffdc log for any additional information about the error.