diff --git a/addons/mass_mailing/models/mailing.py b/addons/mass_mailing/models/mailing.py
index 9a813fe2522..2e719c7d0a1 100644
--- a/addons/mass_mailing/models/mailing.py
+++ b/addons/mass_mailing/models/mailing.py
@@ -88,7 +88,7 @@ class MassMailing(models.Model):
         help="Date at which the mailing was or will be sent.")
     # don't translate 'body_arch', the translations are only on 'body_html'
     body_arch = fields.Html(string='Body', translate=False, sanitize=False)
-    body_html = fields.Html(string='Body converted to be sent by mail', sanitize=False)
+    body_html = fields.Html(string='Body converted to be sent by mail', render_engine='qweb', sanitize=False)
     is_body_empty = fields.Boolean(compute="_compute_is_body_empty",
                                    help='Technical field used to determine if the mail body is empty')
     attachment_ids = fields.Many2many('ir.attachment', 'mass_mailing_ir_attachments_rel',
diff --git a/addons/test_mass_mailing/tests/test_mailing_test.py b/addons/test_mass_mailing/tests/test_mailing_test.py
index b3685d92c86..d3bca1cf3c7 100644
--- a/addons/test_mass_mailing/tests/test_mailing_test.py
+++ b/addons/test_mass_mailing/tests/test_mailing_test.py
@@ -3,6 +3,7 @@
 import lxml.html
 
 from odoo.addons.test_mass_mailing.tests.common import TestMassMailCommon
+from odoo.fields import Command
 from odoo.tests.common import users
 from odoo.tools import mute_logger
 
@@ -47,7 +48,7 @@ class TestMailingTest(TestMassMailCommon):
         # Test if bad inline_template in the body raises an error
         mailing.write({
             'subject': 'Subject {{ object.name }}',
-            'body_html': '<p>Hello {{ object.name_id.id }}</p>',
+            'body_html': '<p>Hello <t t-out="object.name_id.id"/></p>',
         })
         with self.mock_mail_gateway(), self.assertRaises(Exception):
             mailing_test.send_mail_test()
@@ -59,3 +60,48 @@ class TestMailingTest(TestMassMailCommon):
         })
         with self.mock_mail_gateway(), self.assertRaises(Exception):
             mailing_test.send_mail_test()
+
+    def test_mailing_test_equals_reality(self):
+        """
+        Check that both test and real emails will format the qweb and inline placeholders correctly in body and subject.
+        """
+        contact_list = self.env['mailing.list'].create({
+            'name': 'Testers',
+            'contact_ids': [Command.create({
+                'name': 'Mitchell Admin',
+                'email': 'real@real.com',
+            })],
+        })
+
+        mailing = self.env['mailing.mailing'].create({
+            'name': 'TestButton',
+            'subject': 'Subject {{ object.name }} <t t-out="object.name"/>',
+            'state': 'draft',
+            'mailing_type': 'mail',
+            'body_html': '<p>Hello {{ object.name }} <t t-out="object.name"/></p>',
+            'mailing_model_id': self.env['ir.model']._get('mailing.list').id,
+            'contact_list_ids': [contact_list.id],
+        })
+        mailing_test = self.env['mailing.mailing.test'].create({
+            'email_to': 'test@test.com',
+            'mass_mailing_id': mailing.id,
+        })
+
+        with self.mock_mail_gateway():
+            mailing_test.send_mail_test()
+
+        expected_subject = 'Subject Mitchell Admin <t t-out="object.name"/>'
+        expected_body = 'Hello {{ object.name }} Mitchell Admin'
+
+        self.assertSentEmail(self.env.user.partner_id, ['test@test.com'],
+            subject=expected_subject,
+            body_content=expected_body)
+
+        with self.mock_mail_gateway():
+            # send the mailing
+            mailing.action_launch()
+            self.env.ref('mass_mailing.ir_cron_mass_mailing_queue').method_direct_trigger()
+
+        self.assertSentEmail(self.env.user.partner_id, ['real@real.com'],
+            subject=expected_subject,
+            body_content=expected_body)