diff --git a/app/controllers/users.py b/app/controllers/users.py
index 9c07dc60..d4b339f8 100644
--- a/app/controllers/users.py
+++ b/app/controllers/users.py
@@ -31,8 +31,7 @@
 from bson.json_util import dumps
 from app.models.app import App
 from app.helpers.crane_app_logger import logger
-
-
+from app.helpers.email_validator import  is_valid_email
 class UsersView(Resource):
 
     def post(self):
@@ -44,8 +43,14 @@ def post(self):
         user_data = request.get_json()
 
         validated_user_data, errors = user_schema.load(user_data)
-
+        
         email = validated_user_data.get('email', None)
+        print(email)
+        if not is_valid_email(email):
+            print(email)
+            return dict(status='fail', message=f'Invalid email address'), 400
+            
+    
         client_base_url = os.getenv(
             'CLIENT_BASE_URL',
             f'https://{request.host}/users'
diff --git a/app/helpers/email_validator.py b/app/helpers/email_validator.py
new file mode 100644
index 00000000..6e78410e
--- /dev/null
+++ b/app/helpers/email_validator.py
@@ -0,0 +1,18 @@
+from validate_email import validate_email
+
+def is_valid_email(email: str) -> bool:
+    return validate_email(
+        email_address=email,
+        check_format=True,
+        check_blacklist=True,
+        check_dns=True,
+        dns_timeout=10,
+        check_smtp=True,
+        smtp_timeout=10,
+        smtp_helo_host='my.host.name',
+        smtp_from_address='my@from.addr.ess',
+        smtp_skip_tls=False,
+        smtp_tls_context=None,
+        smtp_debug=False,
+        
+    )
\ No newline at end of file
diff --git a/requirements.txt b/requirements.txt
index c3d3453d..b5dd3cc9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -35,7 +35,6 @@ Flask-RESTful==0.3.9
 Flask-SQLAlchemy==2.4.0
 google-auth==1.6.3
 gunicorn==20.1.0
-idna==2.8
 importlib-metadata==4.8.3
 iniconfig==1.1.1
 ipaddress==1.0.22
@@ -78,7 +77,6 @@ pyxdg==0.25
 PyYAML==6.0
 rave-python==1.2.16
 redis==4.3.6
-requests==2.27.1
 requests-oauthlib==1.2.0
 rsa==4.0
 SecretStorage==2.3.1
@@ -95,3 +93,6 @@ wcwidth==0.2.5
 websocket-client==0.56.0
 Werkzeug==2.0.3
 zipp==3.6.0
+py3-validate-email==1.0.5.post2
+requests>=2.27.1
+idna>=2.5