Add scheduled email feature for reminders

config/environments/development.rb

@@ -32,10 +32,14 @@ Rails.application.configure do
   config.active_storage.service = :local
 
   # Don't care if the mailer can't send.
-  config.action_mailer.raise_delivery_errors = false
+  config.action_mailer.raise_delivery_errors = true
 
   config.action_mailer.perform_caching = false
 
+  config.action_mailer.default_url_options = { host: 'localhost', port: 3000 }
+
+  config.action_mailer.delivery_method = :sendmail
+
   # Print deprecation notices to the Rails logger.
   config.active_support.deprecation = :log
 

config/environments/test.rb

@@ -40,6 +40,8 @@ Rails.application.configure do
   # ActionMailer::Base.deliveries array.
   config.action_mailer.delivery_method = :test
 
+  config.action_mailer.default_url_options = { host: 'localhost', port: 3000 }
+
   # Print deprecation notices to the stderr.
   config.active_support.deprecation = :stderr