You configure your Email Server Settings to connect to a server that only accepts TLS connections. You select the option to Require the specified email server to use a secure connection and select Use TLS. The test email gets sent successfully. Notification emails fail and never work.
530 5.7.57 SMTP; Client was not authenticated to send anonymous mail during MAIL FROM
TLS status is missing from MailConfig.properties
This issue is resolved in Symantec Endpoint Protection (SEP) 14 RU1. For more information on upgrading, please see Upgrade or migrate to Endpoint Protection 14.