diff --git a/mail/mail_reader_all_contacts.py b/mail/mail_reader_all_contacts.py
index a89fe99..d97f442 100755
--- a/mail/mail_reader_all_contacts.py
+++ b/mail/mail_reader_all_contacts.py
@@ -103,7 +103,7 @@ class MailReader():
             folder_list = self.show_folders(imap)
             for folder in folder_list:
                 print("folder is " + folder)
-                if folder is "Sent" or folder is "Drafts":
+                if folder == "Sent" or folder == "Drafts":
                     pass
                 else:
                     mail_list.extend(self._get_messages_from_folder_for_imapclient(imap, folder=folder))
@@ -172,10 +172,12 @@ class MailReader():
         search_terms = 'SINCE "{}"'.format(
             datetime.datetime.today().strftime(
                 date_format))
-        print("search terms is " + search_terms)
+        print("{}: search terms is {}".format(self.login,search_terms))
         imap.select_folder(folder)
         messages = imap.search(['SINCE', datetime.datetime.today()])
-        print("%d messages from our best friend" % len(messages))
+        print("{}: {} messages from our best friend".format(self.login, len(messages)))
+        if len(messages) ==0:
+            return mail_messages
         for uid, message_data in imap.fetch(messages, 'RFC822').items():
             try:
                 email_message = email.message_from_bytes(message_data[b'RFC822'])
@@ -263,7 +265,7 @@ def find_links_to_validate_from_mail_list(mail_list: list, logger):
     contact_to_book_list = MONGO_STORE_MANAGER.get_all_contact_to_book_list()
     successful_items = MONGO_STORE_MANAGER.get_all_successful_items_for_day()
     mails_messages = []
-    with ThreadPoolExecutor(max_workers=len(mail_list)) as executor:
+    with ThreadPoolExecutor(max_workers=200) as executor:
         for mail in mail_list:
             # check whether we need to read mail
             if need_to_check_email(mail.mail, successful_items):
@@ -277,7 +279,10 @@ def find_links_to_validate_from_mail_list(mail_list: list, logger):
             _item = find_item_by_url(url, _refreshed_successful_items)
             if need_to_valid_url(url, _item):
                 logger.info("need to validate url: " + url)
-                MONGO_STORE_MANAGER.save_links_to_validate(url, mail.to_address, model=_item.model,
+                _model = ""
+                if _item:
+                    _model = _item.model
+                MONGO_STORE_MANAGER.save_links_to_validate(url, mail.to_address, model=_model,
                                                            _all_contact_list=contact_to_book_list)
             else:
                 logger.info("do not need to click url --> {}".format(mail.mail_address))
@@ -290,8 +295,8 @@ if __name__ == '__main__':
         # file_name="/Users/rdv/Desktop/contact_list_not_used_contacts.xlsx")
         # file_name="/Users/lpan/Desktop/contact_list_not_used_contacts.xlsx")
         # file_name="/Users/rdv/Desktop/real_name_contacts_100_hotmail.xlsx")
-    # file_name="/Users/lpan/Desktop/contact_list_2025-06-27.xlsx")
-    file_name="/Users/lpan/Desktop/contact_list_all_studio.xlsx")
+    # file_name="~/Desktop/contact_list_2025-07-11.xlsx")
+    file_name="~/Desktop/contact_list_all_studio.xlsx")
     # file_name="/Users/rdv/Desktop/contact_list_all_studo_gmx_us.xlsx")
     # file_name="/Users/rdv/Desktop/contact_list_2025-05-24.xlsx")
     all_mail_list = MONGO_STORE_MANAGER.get_destination_emails()