diff --git a/apiserver/plane/authentication/views/app/check.py b/apiserver/plane/authentication/views/app/check.py
index c7e4b8a5e2f..0ad1db61f38 100644
--- a/apiserver/plane/authentication/views/app/check.py
+++ b/apiserver/plane/authentication/views/app/check.py
@@ -60,6 +60,9 @@ def post(self, request):
             )
             return Response(exc.get_error_dict(), status=status.HTTP_400_BAD_REQUEST)
 
+        # Lower the email
+        email = str(email).lower().strip()
+
         # Validate email
         try:
             validate_email(email)
diff --git a/apiserver/plane/authentication/views/space/check.py b/apiserver/plane/authentication/views/space/check.py
index 9b4d8aa56d2..c8a4539b712 100644
--- a/apiserver/plane/authentication/views/space/check.py
+++ b/apiserver/plane/authentication/views/space/check.py
@@ -60,6 +60,7 @@ def post(self, request):
             )
             return Response(exc.get_error_dict(), status=status.HTTP_400_BAD_REQUEST)
 
+        email = str(email).lower().strip()
         # Validate email
         try:
             validate_email(email)