diff --git a/lemarche/conversations/constants.py b/lemarche/conversations/constants.py
index 01019515b..e625b1d14 100644
--- a/lemarche/conversations/constants.py
+++ b/lemarche/conversations/constants.py
@@ -2,8 +2,10 @@
 
 SOURCE_MAILJET = "MAILJET"
 SOURCE_BREVO = "BREVO"
+SOURCE_DJANGO = "DJANGO"
 
 SOURCE_CHOICES = (
     (SOURCE_MAILJET, "Mailjet"),
     (SOURCE_BREVO, "Brevo"),
+    (SOURCE_DJANGO, "Django"),
 )
diff --git a/lemarche/conversations/migrations/0014_alter_templatetransactional_source.py b/lemarche/conversations/migrations/0014_alter_templatetransactional_source.py
new file mode 100644
index 000000000..758a0d3ea
--- /dev/null
+++ b/lemarche/conversations/migrations/0014_alter_templatetransactional_source.py
@@ -0,0 +1,22 @@
+# Generated by Django 4.2.9 on 2024-04-29 13:28
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("conversations", "0013_templatetransactional_email_fields"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="templatetransactional",
+            name="source",
+            field=models.CharField(
+                blank=True,
+                choices=[("MAILJET", "Mailjet"), ("BREVO", "Brevo"), ("DJANGO", "Django")],
+                max_length=20,
+                verbose_name="Source",
+            ),
+        ),
+    ]