Issue #3269614 by lamp5, AdamPS: Policy label is always empty for generic drupal mails

src/Entity/MailerPolicy.php

@@ -184,6 +184,14 @@ class MailerPolicy extends ConfigEntityBase implements EntityWithPluginCollectio
     return $this->entityId ? $this->labelUnknown : $this->labelAll;
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public function label() {
+    $labels = [$this->getTypeLabel(), $this->getSubTypeLabel(), $this->getEntityLabel()];
+    return implode(' » ', array_filter($labels));
+  }
+
   /**
    * Sets the email adjuster configuration for this policy record.
    *