diff --git a/apps/notification/backend/services/email/email_bounce_service.py b/apps/notification/backend/services/email/email_bounce_service.py
index df3d824..327d356 100644
--- a/apps/notification/backend/services/email/email_bounce_service.py
+++ b/apps/notification/backend/services/email/email_bounce_service.py
@@ -11,13 +11,13 @@ class EmailBounceService:
 
     async def process_bounce_event(self, email: str, tenant_id: str, bounce_type: BounceType, 
                                  reason: str, message_id: str = None) -> Dict:
-        """处理退信事件，建立email_id关联"""
+        """handle bounce event, create email_id association"""
         try:
-            # 1. 查找对应的邮件记录
+            # 1. find corresponding email record
             email_status_doc = await EmailSendStatusDoc.find_one(
                 EmailSendStatusDoc.recipient_email == email,
                 EmailSendStatusDoc.tenant_id == tenant_id
-            ).sort(-EmailSendStatusDoc.created_at)  # 获取最新的邮件记录
+            ).sort(-EmailSendStatusDoc.created_at)  
             
             email_id = None
             template_id = None
@@ -25,6 +25,12 @@ class EmailBounceService:
             if email_status_doc:
                 email_id = email_status_doc.email_id
                 template_id = email_status_doc.template_id
+
+                # 2. update email status to bounced
+                email_status_doc.status = EmailSendStatus.BOUNCED
+                email_status_doc.updated_at = datetime.utcnow()
+                await email_status_doc.save()
+                
                 await self.module_logger.log_info(
                     "Found email record for bounce",
                     properties={
@@ -42,11 +48,11 @@ class EmailBounceService:
                     }
                 )
             
-            # 2. 创建退信记录
+            # 3. create bounce record
             bounce_doc = EmailBounceDoc(
                 email=email,
                 tenant_id=tenant_id,
-                email_id=email_id,  # 建立关联
+                email_id=email_id,  
                 template_id=template_id,
                 bounce_type=bounce_type,
                 reason=reason,
@@ -89,7 +95,7 @@ class EmailBounceService:
             raise
 
     async def get_bounce_info(self, email: str, tenant_id: str) -> Optional[Dict]:
-        """获取退信信息"""
+        """get bounce info"""
         try:
             bounce_doc = await EmailBounceDoc.find_one(
                 EmailBounceDoc.email == email,
@@ -125,7 +131,7 @@ class EmailBounceService:
             raise
 
     async def mark_bounce_processed(self, email: str, tenant_id: str) -> bool:
-        """标记退信为已处理"""
+        """mark bounce as processed"""
         try:
             bounce_doc = await EmailBounceDoc.find_one(
                 EmailBounceDoc.email == email,
@@ -159,14 +165,13 @@ class EmailBounceService:
             )
             raise 
 
-    async def is_blacklisted(self, email: str, tenant_id: str) -> bool:
-        """检查邮箱是否在黑名单中"""
+    async def is_blacklisted(self, email: str, tenant_id: str):
+        """check if email is blacklisted"""
         try:
-            # 查找该邮箱的退信记录
             bounce_doc = await EmailBounceDoc.find_one(
                 EmailBounceDoc.email == email,
                 EmailBounceDoc.tenant_id == tenant_id,
-                EmailBounceDoc.bounce_type == BounceType.HARD_BOUNCE  # 只检查硬退信
+                EmailBounceDoc.bounce_type == BounceType.HARD_BOUNCE
             )
             
             is_blacklisted = bounce_doc is not None