The Symantec Endpoint Protection Manager (SEPM) is unable to send email to mail servers requiring TLS 1.2
Test messages from SEPM server properties dialog will be sent OK, but scheduled reports and notification emails will fail
The SEPM sends email using JavaMail. The versions of JavaMail that the SEPM console and SEPM server use are different, and the server's is not up-to-date.
This issue is fixed in Symantec Endpoint Protection 14.2 RU2. For information on how to obtain the latest build of Symantec Endpoint Protection, see Download the latest version of Symantec software here.