Email Configuration Error

[pcr]

I made it work with this
The smtp is provided by a local national hosting site
If I try with my Google Workspace account, same configuration, it doesn’t work

@pcr

    environment:
      OR_SETUP_TYPE:
      OR_ADMIN_PASSWORD:
      OR_SETUP_RUN_ON_RESTART:
      OR_EMAIL_HOST: ${OR_EMAIL_HOST:-my.smtp.com}
      OR_EMAIL_USER: ${OR_EMAIL_USER:-my@username.com}
      OR_EMAIL_PASSWORD: ${OR_EMAIL_PASSWORD:-mypassword}
      OR_EMAIL_PORT: ${OR_EMAIL_PORT:-587}
      OR_EMAIL_TLS: ${OR_EMAIL_TLS:-STARTTLS}
      OR_EMAIL_X_HEADERS:
      OR_EMAIL_FROM: ${OR_EMAIL_FROM:-my@username.com}
      OR_EMAIL_ADMIN: ${OR_EMAIL_ADMIN:-my@username.com}

One thing I noticed, but not sure if it’s useful, is that I get the “must issue STARTTLS command” if I write the variables like this
OR_EMAIL_USER: my@email.com
Instead if I write it as
OR_EMAIL_USER: ${OR_EMAIL_USER:-my@email.com}
I get the error
Error processing from REALM_RULESET - NOTIFICATION_HANDLER_CONFIG_ERROR (Handler is not valid: email): Notification{name=‘null’, message=org.openremote.model.notification.EmailNotificationMessage@1e26a3b7, repeatFrequency=null, repeatInterval=‘null’, targets=[Target{type=USER, id=xxxx}]}
I’m wondering if he’s getting some values from somewhere else that bugs it? From what I understood the parenthesis should mean "use the variable, otherwise by default value is the one following :- "