diff --git a/src/db/mongo_manager.py b/src/db/mongo_manager.py
index 93eed95..30422cf 100755
--- a/src/db/mongo_manager.py
+++ b/src/db/mongo_manager.py
@@ -25,6 +25,7 @@ DESTINATION_EMAIL_LIST = "DESTINATION_EMAIL_LIST"
 LINKS_TO_VALIDATE = "LINKS_TO_VALIDATE"
 INVALID_EMAIL_LIST = "INVALID_EMAIL_LIST"
 ADRESSE_LIST = "address"
+CONTACT_LIST_SERIAL_MAP = "CONTACT_LIST_SERIAL_MAP"
 
 
 class MongoDbManager:
@@ -318,8 +319,15 @@ class MongoDbManager:
             _all_contact_list.append(ContactPojo.from_firestore_dict(document))
         return _all_contact_list
 
+    def get_all_contact_serial_list(self) -> list:
+        result_list = []
+        cursor = self.db[CONTACT_LIST_SERIAL_MAP]
+        for document in cursor.find():
+            result_list.append(ContactPojo.from_firestore_dict(document))
+        return result_list
+
     def save_links_to_validate(self, link: str, mail_address: str, _all_contact_list: list,
-                               _item: Union[ReserveResultPojo, None]):
+                               _item: Union[ReserveResultPojo, None], contact_serial_map_list):
         collection_to_use = self.db[LINKS_TO_VALIDATE]
         updated_at = time.strftime("%H:%M:%S", time.localtime())
         _ip_country = "FR"
@@ -328,6 +336,12 @@ class MongoDbManager:
         if _item:
             _model = _item.source_from
             serial = _item.serial
+        if len(serial) == 0:
+            for contact in contact_serial_map_list:
+                if contact.mail == mail_address:
+                    serial = contact.serial
+                    _model = contact.model
+                    break
 
         # find ip_country info
         for _contact in _all_contact_list:
diff --git a/src/mail/mail_reader.py b/src/mail/mail_reader.py
index f16d79f..3756619 100755
--- a/src/mail/mail_reader.py
+++ b/src/mail/mail_reader.py
@@ -256,6 +256,7 @@ def read_mails():
         # get ip_country info
         _refreshed_successful_items = MONGO_STORE_MANAGER.get_all_successful_items_for_day()
         _all_contact_list = MONGO_STORE_MANAGER.get_all_contacts_to_book()
+        contact_serial_map_list = MONGO_STORE_MANAGER.get_all_contact_serial_list()
         with ThreadPoolExecutor(max_workers=10) as executor:
             for mail in mails_messages:
                 match = re.search(VALIDATION_URL_REGEX, mail.body)
@@ -263,7 +264,8 @@ def read_mails():
                     url = match.group(0)
                     _item, is_need_to = need_to_valid_url(url, _refreshed_successful_items)
                     if is_need_to:
-                        MONGO_STORE_MANAGER.save_links_to_validate(url, mail.to_address, _all_contact_list, _item)
+                        MONGO_STORE_MANAGER.save_links_to_validate(url, mail.to_address, _all_contact_list, _item,
+                                                                   contact_serial_map_list)
                         # url_validator = LinkValidator(url)
                         print("need to validate url: " + url)
                         # executor.submit(url_validator.start_page, params.get_proxy(ProxyType.OXYLABS), False)