diff --git a/doc/api/resources/orders.rst b/doc/api/resources/orders.rst
index f914732b0..1e775b37d 100644
--- a/doc/api/resources/orders.rst
+++ b/doc/api/resources/orders.rst
@@ -899,8 +899,9 @@ Creating orders
 
    * ``force`` (optional). If set to ``true``, quotas will be ignored.
    * ``send_email`` (optional). If set to ``true``, the same emails will be sent as for a regular order, regardless of
-     whether these emails are enabled for certain sales channels. Defaults to
-     ``false``. Used to be ``send_mail`` before pretix 3.14.
+     whether these emails are enabled for certain sales channels. If set to ``null``, behaviour will be controlled by pretix'
+     settings based on the sales channels (added in pretix 4.7). Defaults to ``false``.
+     Used to be ``send_mail`` before pretix 3.14.
 
    If you want to use add-on products, you need to set the ``positionid`` fields of all positions manually
    to incrementing integers starting with ``1``. Then, you can reference one of these
diff --git a/src/pretix/__init__.py b/src/pretix/__init__.py
index 3b736a749..282979171 100644
--- a/src/pretix/__init__.py
+++ b/src/pretix/__init__.py
@@ -19,4 +19,4 @@
 # You should have received a copy of the GNU Affero General Public License along with this program.  If not, see
 # <https://www.gnu.org/licenses/>.
 #
-__version__ = "4.7.0.dev0"
+__version__ = "4.7.0.dev1"
diff --git a/src/pretix/api/serializers/order.py b/src/pretix/api/serializers/order.py
index 277575b6a..ab30b0752 100644
--- a/src/pretix/api/serializers/order.py
+++ b/src/pretix/api/serializers/order.py
@@ -934,7 +934,7 @@ class OrderCreateSerializer(I18nAwareModelSerializer):
     consume_carts = serializers.ListField(child=serializers.CharField(), required=False)
     force = serializers.BooleanField(default=False, required=False)
     payment_date = serializers.DateTimeField(required=False, allow_null=True)
-    send_email = serializers.BooleanField(default=False, required=False)
+    send_email = serializers.BooleanField(default=False, required=False, allow_null=True)
     require_approval = serializers.BooleanField(default=False, required=False)
     simulate = serializers.BooleanField(default=False, required=False)
     customer = serializers.SlugRelatedField(slug_field='identifier', queryset=Customer.objects.none(), required=False)
@@ -1042,6 +1042,8 @@ class OrderCreateSerializer(I18nAwareModelSerializer):
         force = validated_data.pop('force', False)
         simulate = validated_data.pop('simulate', False)
         self._send_mail = validated_data.pop('send_email', False)
+        if self._send_mail is None:
+            self._send_mail = validated_data.get('sales_channel') in self.context['event'].settings.mail_sales_channel_placed_paid
 
         if 'invoice_address' in validated_data:
             iadata = validated_data.pop('invoice_address')
diff --git a/src/tests/api/test_orders.py b/src/tests/api/test_orders.py
index c1cd219cb..be2f6f270 100644
--- a/src/tests/api/test_orders.py
+++ b/src/tests/api/test_orders.py
@@ -3554,6 +3554,36 @@ def test_order_create_send_emails_free(token_client, organizer, event, item, quo
     assert djmail.outbox[0].subject == "Your order: {}".format(resp.data['code'])
 
 
+@pytest.mark.django_db
+def test_order_create_send_emails_based_on_sales_channel(token_client, organizer, event, item, quota, question):
+    res = copy.deepcopy(ORDER_CREATE_PAYLOAD)
+    res['positions'][0]['item'] = item.pk
+    res['positions'][0]['price'] = '0.00'
+    res['payment_provider'] = 'free'
+    del res['fees']
+    res['positions'][0]['answers'][0]['question'] = question.pk
+    res['send_email'] = None
+    djmail.outbox = []
+    resp = token_client.post(
+        '/api/v1/organizers/{}/events/{}/orders/'.format(
+            organizer.slug, event.slug
+        ), format='json', data=res
+    )
+    assert resp.status_code == 201
+    assert len(djmail.outbox) == 1
+    assert djmail.outbox[0].subject == "Your order: {}".format(resp.data['code'])
+
+    event.settingsmail_sales_channel_placed_paid = []
+    djmail.outbox = []
+    resp = token_client.post(
+        '/api/v1/organizers/{}/events/{}/orders/'.format(
+            organizer.slug, event.slug
+        ), format='json', data=res
+    )
+    assert resp.status_code == 201
+    assert len(djmail.outbox) == 1
+
+
 @pytest.mark.django_db
 def test_order_create_send_emails_paid(token_client, organizer, event, item, quota, question):
     res = copy.deepcopy(ORDER_CREATE_PAYLOAD)