diff --git a/app/services/mail_store.py b/app/services/mail_store.py
index 0116ba5..ed820b2 100644
--- a/app/services/mail_store.py
+++ b/app/services/mail_store.py
@@ -34,6 +34,12 @@ class MailStore:
     async def save_email(self, message, sender, recipients, raw_data=None):
         """保存邮件到数据库和文件系统"""
         logging.info(f"开始保存邮件: 发件人={sender}, 收件人={recipients}")
+        if recipients is None:
+            logging.warning("收件人列表为None，将使用空列表")
+            recipients_list = []
+        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}")
         try:
             # 解析邮件内容
             email_subject = None
@@ -44,24 +50,29 @@ class MailStore:
             # 提取邮件主题
             if hasattr(message, 'subject') and message.subject:
                 email_subject = message.subject
+                logging.debug(f"提取的邮件主题: {email_subject}")
             
             # 提取邮件内容
             if hasattr(message, 'get_body'):
                 try:
                     for part in message.walk():
                         content_type = part.get_content_type()
+                        logging.debug(f"处理邮件部分: {content_type}")
                         
                         if content_type == "text/plain":
                             body_text = part.get_payload(decode=True).decode(part.get_content_charset() or 'utf-8', errors='replace')
+                            logging.debug(f"提取的纯文本内容长度: {len(body_text)}")
                         
                         elif content_type == "text/html":
                             body_html = part.get_payload(decode=True).decode(part.get_content_charset() or 'utf-8', errors='replace')
+                            logging.debug(f"提取的HTML内容长度: {len(body_html)}")
                         
                         # 处理附件
                         if part.get_filename():
                             file_name = part.get_filename()
                             content = part.get_payload(decode=True)
                             attachments.append((file_name, content))
+                            logging.debug(f"提取的附件: {file_name}")
                 except Exception as e:
                     logging.error(f"获取邮件内容时出错: {str(e)}")
             
@@ -85,13 +96,6 @@ class MailStore:
                 # 查找收件人对应的邮箱
                 mailbox_id = None
                 
-                # 处理recipients为None的情况
-                if recipients is None:
-                    logging.warning("收件人列表为None，将使用空列表")
-                    recipients_list = []
-                else:
-                    recipients_list = recipients if isinstance(recipients, list) else [recipients]
-                
                 # 确保收件人列表不为空
                 if not recipients_list:
                     logging.error("收件人列表为空，无法确定邮箱")
@@ -100,6 +104,7 @@ class MailStore:
                 # 尝试找到或创建收件人邮箱
                 for recipient in recipients_list:
                     # 跳过空收件人
+                    logging.debug(f"处理收件人: {recipient}")
                     if not recipient or '@' not in recipient:
                         continue