diff --git a/apps/users/models/user.py b/apps/users/models/user.py
index 21cc9bf03..b696795a8 100644
--- a/apps/users/models/user.py
+++ b/apps/users/models/user.py
@@ -596,6 +596,11 @@ class User(AuthMixin, TokenMixin, RoleMixin, MFAMixin, AbstractUser):
         user.save()
         user.groups.add(UserGroup.initial())
 
+    def can_send_created_mail(self):
+        if self.email and self.source == self.SOURCE_LOCAL:
+            return True
+        return False
+
     @classmethod
     def generate_fake(cls, count=100):
         from random import seed, choice
diff --git a/apps/users/signals_handler.py b/apps/users/signals_handler.py
index 45c03f3cf..aa1458c7d 100644
--- a/apps/users/signals_handler.py
+++ b/apps/users/signals_handler.py
@@ -17,7 +17,7 @@ def on_user_create(sender, user=None, **kwargs):
     logger.debug("Receive user `{}` create signal".format(user.name))
     from .utils import send_user_created_mail
     logger.info("   - Sending welcome mail ...".format(user.name))
-    if user.email:
+    if user.can_send_created_mail():
         send_user_created_mail(user)
 
 
diff --git a/apps/users/tasks.py b/apps/users/tasks.py
index 45e1c40cd..5c7bc0e47 100644
--- a/apps/users/tasks.py
+++ b/apps/users/tasks.py
@@ -22,15 +22,15 @@ logger = get_logger(__file__)
 
 @shared_task
 def check_password_expired():
-    users = User.objects.exclude(role=User.ROLE_APP)
+    users = User.objects.filter(source=User.SOURCE_LOCAL).exclude(role=User.ROLE_APP)
     for user in users:
         if not user.is_valid:
             continue
         if not user.password_will_expired:
             continue
-        send_password_expiration_reminder_mail(user)
         msg = "The user {} password expires in {} days"
         logger.info(msg.format(user, user.password_expired_remain_days))
+        send_password_expiration_reminder_mail(user)
 
 
 @shared_task
@@ -55,6 +55,8 @@ def check_user_expired():
             continue
         if not user.will_expired:
             continue
+        msg = "The user {} will expires in {} days"
+        logger.info(msg.format(user, user.expired_remain_days))
         send_user_expiration_reminder_mail(user)