Notifications: TLS Standard vs. Wrapper Mode

NOYB

System: Advanced: Notifications
SMTP E-Mail

Having trouble getting notifications to work with Postfix mail server operating in TLS standard mode (non-wrapper mode). Cannot connect to the host unless mail server is operating in the non-standard "wrapper" mode.

php: /system_advanced_notifications.php: Could not send the message to pfSense@<domain>.com – Error: could not connect to the host "smtp.<domain>.com": ??

Standard mode like this for instance fails to connect to the host. :(
Postfix master.cf:
submission inet n - n - - smtpd
** -o smtpd_tls_security_level=encrypt**
-o smtpd_sasl_auth_enable=yes
-o smtpd_client_restrictions=permit_sasl_authenticated,reject

Non-Standard "Wrapper" mode like this for instance works. :)
Postfix master.cf:
submission inet n - n - - smtpd
** -o smtpd_tls_wrappermode=yes**
-o smtpd_sasl_auth_enable=yes
-o smtpd_client_restrictions=permit_sasl_authenticated,reject

Postfix Doc:
http://www.postfix.org/TLS_README.html#server_enable

Thanks for any helpful input you can provide.</domain></domain>