Does OTM v6.2.10 Support Secure Email SSL/TLS

I was trying to setup SMTP Authentication by changing the glog.properties for both web and app servers (glog.mail.smtp.host and glog.workflow.notify.defaultSmtphost) "username/{epassword@smtp.company.com" but not able to send and throws exception below:

2020-10-10 00:54:01.636 0 Error Exception javax.mail.SendFailedException: Sending failed;

 nested exception is: class javax.mail.MessagingException: Could not connect to SMTP host: smtp.signintra.com, port: 25

javax.mail.SendFailedException: Sending failed;

 nested exception is:

 class javax.mail.MessagingException: Could not connect to SMTP host: smtp.signintra.com, port: 25

 at javax.mail.Transport.send0(Transport.java:218)

 at javax.mail.Transport.send(Transport.java:80)