diff --git a/src/person_name/extract_name_with_pinyinlist.py b/src/person_name/extract_name_with_pinyinlist.py
index 87d187a..41786eb 100755
--- a/src/person_name/extract_name_with_pinyinlist.py
+++ b/src/person_name/extract_name_with_pinyinlist.py
@@ -4,7 +4,7 @@ from concurrent.futures import ThreadPoolExecutor
 
 import xlsxwriter
 
-from src.db.mongo_manager import MongoDbManager
+from src.db.mongo_manager import MongoDbManager, MONGO_STORE_MANAGER
 from src.pojo.contact_pojo import ContactPojo
 from src.utils.excel_reader import get_random_fr_phone_numbers, ExcelHelper
 from src.utils.contacts.generate_random_passport_id import get_random_passport_id_number
@@ -224,7 +224,9 @@ def generate_contact_from_mail_list(_start_position, _end_position):
     # mail_list = db_manager.get_destination_emails()[8501:8520]
     # mail_list = db_manager.get_destination_emails()[8521:8600]
     mail_list = db_manager.get_destination_emails()[_start_position:_end_position]
-    print("mail_list size is {}".format(len(mail_list)))
+    print("mail_list size before filter is {}".format(len(mail_list)))
+    filter_already_validated_contacts(mail_list)
+    print("mail_list size after filter is {}".format(len(mail_list)))
     # mail_list = db_manager.get_destination_emails()[9323:9914]
     # excel_reader = ExcelHelper()
     # mail_list = excel_reader.read_mails_and_pwd(file_name="/Users/lpan/Desktop/toExtract.xlsx")
@@ -239,6 +241,14 @@ def generate_contact_from_mail_list(_start_position, _end_position):
     write_new_contacts_to_excel(generate_contacts)
 
 
+def filter_already_validated_contacts(_list_to_extract):
+    _already_validated_contact_list = MONGO_STORE_MANAGER.get_all_contacts_to_book()
+    for _validated_contact in _already_validated_contact_list:
+        for _extracted_contact in _list_to_extract:
+            if _validated_contact.mail == _extracted_contact.mail:
+                _list_to_extract.remove(_extracted_contact)
+
+
 if __name__ == '__main__':
     start_position = 14500
     end_position = 15084