diff --git a/app/services/mail_store.py b/app/services/mail_store.py
index ed820b2..f8e79c2 100644
--- a/app/services/mail_store.py
+++ b/app/services/mail_store.py
@@ -37,9 +37,11 @@ class MailStore:
         if recipients is None:
             logging.warning("收件人列表为None，将使用空列表")
             recipients_list = []
+        elif isinstance(recipients, list):
+            recipients_list = recipients  # 如果是列表，直接使用
         else:
             recipients_list = recipients.split(",")  # 假设是以逗号分隔的字符串
-            logging.debug(f"解析后的收件人列表: {recipients_list}")
+        logging.debug(f"解析后的收件人列表: {recipients_list}")
         try:
             # 解析邮件内容
             email_subject = None