diff --git a/lms/djangoapps/bulk_email/tasks.py b/lms/djangoapps/bulk_email/tasks.py
index ad9390ebca..dd1e0c4cd5 100644
--- a/lms/djangoapps/bulk_email/tasks.py
+++ b/lms/djangoapps/bulk_email/tasks.py
@@ -238,7 +238,7 @@ def perform_delegate_email_batches(entry_id, course_id, task_input, action_name)
     return progress
 
 
-@task(default_retry_delay=settings.BULK_EMAIL_DEFAULT_RETRY_DELAY, max_retries=settings.BULK_EMAIL_MAX_RETRIES)
+@task(default_retry_delay=settings.BULK_EMAIL_DEFAULT_RETRY_DELAY, max_retries=settings.BULK_EMAIL_MAX_RETRIES, routing_key=settings.LOW_PRIORITY_QUEUE)
 def send_course_email(entry_id, email_id, to_list, global_email_context, subtask_status_dict):
     """
     Sends an email to a list of recipients.
diff --git a/lms/djangoapps/instructor_task/tasks.py b/lms/djangoapps/instructor_task/tasks.py
index 78d826f26e..a325e7b041 100644
--- a/lms/djangoapps/instructor_task/tasks.py
+++ b/lms/djangoapps/instructor_task/tasks.py
@@ -138,7 +138,7 @@ def delete_problem_state(entry_id, xmodule_instance_args):
     return run_main_task(entry_id, visit_fcn, action_name)
 
 
-@task(base=BaseInstructorTask)
+@task(base=BaseInstructorTask, routing_key=settings.LOW_PRIORITY_QUEUE)
 def send_bulk_course_email(entry_id, _xmodule_instance_args):
     """Sends emails to recipients enrolled in a course.
 
diff --git a/openedx/core/djangoapps/content/block_structure/tasks.py b/openedx/core/djangoapps/content/block_structure/tasks.py
index c97d0bf700..740950bc17 100644
--- a/openedx/core/djangoapps/content/block_structure/tasks.py
+++ b/openedx/core/djangoapps/content/block_structure/tasks.py
@@ -30,6 +30,7 @@ def block_structure_task(**kwargs):
         default_retry_delay=settings.BLOCK_STRUCTURES_SETTINGS['TASK_DEFAULT_RETRY_DELAY'],
         max_retries=settings.BLOCK_STRUCTURES_SETTINGS['TASK_MAX_RETRIES'],
         bind=True,
+        routing_key=settings.LOW_PRIORITY_QUEUE,
         **kwargs
     )