Dopo un EOF SMTP passa al destinatario successivo invece di congelare la coda.

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

test/services/mailings/outbound_queue_test.rb

@@ -5,6 +5,7 @@ class Mailings::OutboundQueueTest < ActiveSupport::TestCase
 
   setup do
     Mailings::OutboundQueue.min_interval = 0
+    Mailings::OutboundQueue.fail_interval = 0
     Mailings::OutboundQueue.reset!
     Mailings::SmtpGate.min_gap = 0
     Mailings::SmtpGate.backoff_base = 0
@@ -13,6 +14,7 @@ class Mailings::OutboundQueueTest < ActiveSupport::TestCase
 
   teardown do
     Mailings::OutboundQueue.min_interval = 0
+    Mailings::OutboundQueue.fail_interval = 0
     Mailings::OutboundQueue.reset!
   end