diff --git a/app/alias_utils.py b/app/alias_utils.py
index e9506055..d3c00b8c 100644
--- a/app/alias_utils.py
+++ b/app/alias_utils.py
@@ -142,14 +142,17 @@ def try_auto_create_catch_all_domain(address: str) -> Optional[Alias]:
 
 
 def delete_alias(alias: Alias, user: User):
-    Alias.delete(alias.id)
-    db.session.commit()
-
+    """
+    Delete an alias and add it to either global or domain trash
+    Should be used instead of Alias.delete, DomainDeletedAlias.create, DeletedAlias.create
+    """
     # save deleted alias to either global or domain trash
     if alias.custom_domain_id:
         try:
-            DomainDeletedAlias.create(
-                user_id=user.id, email=alias.email, domain_id=alias.custom_domain_id
+            db.session.add(
+                DomainDeletedAlias(
+                    user_id=user.id, email=alias.email, domain_id=alias.custom_domain_id
+                )
             )
             db.session.commit()
         except IntegrityError:
@@ -161,8 +164,11 @@ def delete_alias(alias: Alias, user: User):
             db.session.rollback()
     else:
         try:
-            DeletedAlias.create(email=alias.email)
+            db.session.add(DeletedAlias(email=alias.email))
             db.session.commit()
         except IntegrityError:
             LOG.exception("alias %s has been added before to DeletedAlias", alias.email)
             db.session.rollback()
+
+    Alias.query.filter(Alias.id == alias.id).delete()
+    db.session.commit()
diff --git a/app/models.py b/app/models.py
index ecd9c584..a7b4220f 100644
--- a/app/models.py
+++ b/app/models.py
@@ -13,7 +13,7 @@ from sqlalchemy import text, desc, CheckConstraint, and_, func
 from sqlalchemy.exc import IntegrityError
 from sqlalchemy_utils import ArrowType
 
-from app import s3
+from app import s3, alias_utils
 from app.config import (
     MAX_NB_EMAIL_FREE_PLAN,
     URL,
@@ -870,6 +870,10 @@ class Alias(db.Model, ModelMixin):
             mailbox_id=mailbox_id or user.default_mailbox_id,
         )
 
+    @classmethod
+    def delete(cls, obj_id):
+        raise Exception("should use delete_alias(alias,user) instead")
+
     @classmethod
     def create_new_random(
         cls,
@@ -1292,6 +1296,10 @@ class DeletedAlias(db.Model, ModelMixin):
 
     email = db.Column(db.String(256), unique=True, nullable=False)
 
+    @classmethod
+    def create(cls, **kw):
+        raise Exception("should use delete_alias(alias,user) instead")
+
     def __repr__(self):
         return f"<Deleted Alias {self.email}>"
 
@@ -1411,6 +1419,10 @@ class DomainDeletedAlias(db.Model, ModelMixin):
     )
     user_id = db.Column(db.ForeignKey(User.id, ondelete="cascade"), nullable=False)
 
+    @classmethod
+    def create(cls, **kw):
+        raise Exception("should use delete_alias(alias,user) instead")
+
 
 class LifetimeCoupon(db.Model, ModelMixin):
     code = db.Column(db.String(128), nullable=False, unique=True)