[feat]Config read from environment variables

config/environments/production.rb

@@ -101,4 +101,9 @@ Osem::Application.configure do
 
   # Set the secret_key_base from the env, if not set by any other means
   config.secret_key_base ||= ENV["SECRET_KEY_BASE"]
+
+  # Set bcc email address
+  config.mailbot = {
+    bcc_address: ENV['OSEM_MESSAGE_BCC_ADDRESS']
+  }
 end