diff --git a/swh/web/add_forge_now/migrations/0005_prepare_inbound_email.py b/swh/web/add_forge_now/migrations/0005_prepare_inbound_email.py
new file mode 100644
--- /dev/null
+++ b/swh/web/add_forge_now/migrations/0005_prepare_inbound_email.py
@@ -0,0 +1,30 @@
+# Generated by Django 2.2.16 on 2022-04-01 15:10
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("swh_web_add_forge_now", "0004_rename_tables"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="requesthistory",
+            name="message_source",
+            field=models.BinaryField(null=True),
+        ),
+        migrations.AlterField(
+            model_name="requesthistory",
+            name="actor_role",
+            field=models.TextField(
+                choices=[
+                    ("MODERATOR", "moderator"),
+                    ("SUBMITTER", "submitter"),
+                    ("FORGE_ADMIN", "forge admin"),
+                    ("EMAIL", "email"),
+                ]
+            ),
+        ),
+    ]
diff --git a/swh/web/add_forge_now/models.py b/swh/web/add_forge_now/models.py
--- a/swh/web/add_forge_now/models.py
+++ b/swh/web/add_forge_now/models.py
@@ -67,6 +67,7 @@
     MODERATOR = "moderator"
     SUBMITTER = "submitter"
     FORGE_ADMIN = "forge admin"
+    EMAIL = "email"
 
     @classmethod
     def choices(cls):
@@ -85,6 +86,7 @@
     actor_role = models.TextField(choices=RequestActorRole.choices())
     date = models.DateTimeField(auto_now_add=True)
     new_status = models.TextField(choices=RequestStatus.choices(), null=True)
+    message_source = models.BinaryField(null=True)
 
     class Meta:
         app_label = APP_LABEL
diff --git a/swh/web/api/views/add_forge_now.py b/swh/web/api/views/add_forge_now.py
--- a/swh/web/api/views/add_forge_now.py
+++ b/swh/web/api/views/add_forge_now.py
@@ -109,7 +109,7 @@
 class AddForgeNowRequestHistorySerializer(serializers.ModelSerializer):
     class Meta:
         model = AddForgeNowRequestHistory
-        exclude = ("request",)
+        exclude = ("request", "message_source")
 
 
 class AddForgeNowRequestHistoryPublicSerializer(serializers.ModelSerializer):