Unable to get Zoho Mail Working with Mattermost for SMTP

This has been solved. Following configs work.

SMTP Server: http://smtppro.zoho.com/
SMTP Server Port: 587
Enable SMTP Auth: true
SMTP server username: noreply@mydomain.com
SMTP Server Password: my 60 character random password
Connection Security: STARTTLS
Skip Server Cert. Verification: false
Enable security alerts: true