Serializza gli invii SMTP su una coda unica per non far chiudere Aruba.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/jobs/send_mailing_recipient_job.rb

@@ -21,14 +21,11 @@ class SendMailingRecipientJob < ApplicationJob
       return
     end
 
-    begin
-      CampaignMailer.raise_delivery_errors = true
-      recipient.deliver!
-    ensure
-      CampaignMailer.raise_delivery_errors = false if Rails.env.development?
+    if recipient.pending? && Mailings::OutboundQueue.enqueue(recipient)
+      nxt = mailing.mailing_recipients.pending.order(:id).first
+      mailing.enqueue_next_recipient!(nxt, from: Time.current + mailing.interval_seconds.seconds)
     end
 
-    nxt = mailing.mailing_recipients.pending.order(:id).first
-    mailing.enqueue_next_recipient!(nxt, from: Time.current + mailing.interval_seconds.seconds)
+    DrainOutboundJob.perform_later
   end
 end