I'm trying to set the SMTP settings within the UAA_CONFIG_YAML section of the manifest.
smtp:
host: ${vcap.services.smtpdev.credentials.hostname:localhost}
port: 2525
user: ${vcap.services.smtpdev.credentials.username:user}
password: ${vcap.services.smtpdev.credentials.password:password}
This doesn't work yet the default of localhost is being picked up. If I provide an invalid placeholder it throws an error.