Configure SMTP settings

config/environments/production.rb

@@ -74,11 +74,11 @@ Rails.application.configure do
   config.action_mailer.perform_caching = false
   config.action_mailer.delivery_method = :smtp
   config.action_mailer.smtp_settings = {
-    address: File.read(ENV["SMTP_ADDRESS"]).strip,
-    port: File.read(ENV["SMTP_PORT"]).strip,
-    user_name: File.read(ENV["SMTP_USER_NAME"]).strip,
-    password: File.read(ENV["SMTP_PASSWORD"]).strip,
-    authentication: File.read(ENV["SMTP_AUTHENTICATION"].strip&.to_sym)
+    address: ENV["SMTP_ADDRESS"],
+    port: ENV["SMTP_PORT"],
+    user_name: ENV["SMTP_USER_NAME"],
+    password: ENV["SMTP_PASSWORD"],
+    authentication: ENV["SMTP_AUTHENTICATION"]&.to_sym
   }
 
   # Ignore bad email addresses and do not raise email delivery errors.