password reset mailing

config/environments/production.rb

@@ -64,6 +64,15 @@ Rails.application.configure do
   # config.active_job.queue_name_prefix = "x_stake_production"
 
   config.action_mailer.perform_caching = false
+  config.action_mailer.smtp_settings = {
+    user_name: ENV["MAILGUN_SMTP_LOGIN"],
+    password: ENV["MAILGUN_SMTP_PASSWORD"],
+    address: ENV["MAILGUN_SMTP_SERVER"],
+    domain: ENV["MAILGUN_DOMAIN"],
+    port: ENV["MAILGUN_SMTP_PORT"],
+    authentication: :plain,
+  }
+  config.action_mailer.default_url_options = { host: ENV["MAILER_DEFAULT_URL_HOST"] }
 
   # Ignore bad email addresses and do not raise email delivery errors.
   # Set this to true and configure the email server for immediate delivery to raise delivery errors.