Non tratta l'EOF SMTP come invio riuscito e toglie quei falsi errori dalla lista.

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

test/helpers/application_helper_test.rb

@@ -29,4 +29,19 @@ class ApplicationHelperTest < ActionView::TestCase
     assert_includes html, "title=\"Società affiliata FIPAV con un testo molto lungo da accorciare\""
     assert_includes html, "…"
   end
+
+  test "queued SMTP retries are not shown as delivery failures" do
+    recipient = MailingRecipient.new(status: "queued", error_message: "Da ritentare (1/8): end of file reached")
+    html = mailing_recipient_delivery_note(recipient)
+
+    assert_includes html, "Non risulta inviata"
+    assert_not_includes html, "end of file reached"
+  end
+
+  test "failed recipients still show the SMTP error" do
+    recipient = MailingRecipient.new(status: "failed", error_message: "end of file reached")
+    html = mailing_recipient_delivery_note(recipient)
+
+    assert_includes html, "end of file reached"
+  end
 end