diff --git a/core/admin/mailu/api/v1/alias.py b/core/admin/mailu/api/v1/alias.py
index 3605c68f..600ccc04 100644
--- a/core/admin/mailu/api/v1/alias.py
+++ b/core/admin/mailu/api/v1/alias.py
@@ -77,7 +77,7 @@ class Alias(Resource):
     @alias.response(400, 'Input validation exception', response_fields)
     @alias.doc(security='Bearer')
     @common.api_token_authorization
-    def put(self, alias):
+    def patch(self, alias):
       """ Update alias """
       data = api.payload
       alias_found = models.Alias.query.filter_by(email = alias).first()
@@ -86,8 +86,7 @@ class Alias(Resource):
       if 'comment' in data:
         alias_found.comment = data['comment']
       if 'destination' in data:
-        destination_csl = ",".join(data['destination'])
-        alias_found.destination = destination_csl
+        alias_found.destination = data['destination']
       if 'wildcard' in data:
         alias_found.wildcard = data['wildcard']
       db.session.add(alias_found)
diff --git a/core/admin/mailu/api/v1/domains.py b/core/admin/mailu/api/v1/domains.py
index 76554a02..7043da3d 100644
--- a/core/admin/mailu/api/v1/domains.py
+++ b/core/admin/mailu/api/v1/domains.py
@@ -152,7 +152,7 @@ class Domain(Resource):
     @dom.response(409, 'Duplicate domain/alternative name', response_fields)
     @dom.doc(security='Bearer')
     @common.api_token_authorization
-    def put(self, domain):
+    def patch(self, domain):
         """ Update an existing domain """
         if not validators.domain(domain):
             return { 'code': 400, 'message': f'Domain {domain} is not a valid domain'}, 400
diff --git a/core/admin/mailu/api/v1/relay.py b/core/admin/mailu/api/v1/relay.py
index f4588d22..356f8426 100644
--- a/core/admin/mailu/api/v1/relay.py
+++ b/core/admin/mailu/api/v1/relay.py
@@ -80,7 +80,7 @@ class Relay(Resource):
     @relay.response(409, 'Duplicate relay', response_fields)
     @relay.doc(security='Bearer')
     @common.api_token_authorization
-    def put(self, name):
+    def patch(self, name):
         """ Update relay """
         data = api.payload
 
diff --git a/core/admin/mailu/api/v1/user.py b/core/admin/mailu/api/v1/user.py
index 953d246b..8e3d00a9 100644
--- a/core/admin/mailu/api/v1/user.py
+++ b/core/admin/mailu/api/v1/user.py
@@ -184,7 +184,7 @@ class User(Resource):
     @user.response(409, 'Duplicate user', response_fields)
     @user.doc(security='Bearer')
     @common.api_token_authorization
-    def put(self, email):
+    def patch(self, email):
         """ Update user """
         data = api.payload
         if not validators.email(email):