The user cannot submit a print job via Dispatcher Paragon FlexiSpooler
If you see the following message in the spooler.log
EXCEPTION: System.ArgumentException: No defined value for [DOMAIN_USERNAME_FROM_CLIENT] in enum [Configuration.AuthenticationType]The authentication type of DOMAIN_USERNAME_FROM_CLIENT is used and this configuration is not valid for Dispatcher Paragon FlexiSpooler or Dispatcher Paragon Client V3 prior to 6.0.80. Please use the authentication type DOMAIN_USERNAME, or set DOMAIN_USERNAME_FROM_CLIENT locally in the Client config for newly deployed clients.