diff --git a/apps/notification/backend/models/models.py b/apps/notification/backend/models/models.py
index 5d55cba..ab9d258 100644
--- a/apps/notification/backend/models/models.py
+++ b/apps/notification/backend/models/models.py
@@ -1,8 +1,9 @@
 from beanie import Document
 from datetime import datetime
-from typing import Optional
+from typing import Optional, List
 
 from common.constants.region import UserRegion
+from common.constants.email import EmailSenderStatus, BounceType
 
 class MessageTemplateDoc(Document):
     template_id: str
@@ -16,11 +17,91 @@ class MessageTemplateDoc(Document):
 
     class Settings:
         name = "message_templates_doc"
+        indexes = [
+            "template_id",
+            "tenant_id", 
+            "region"   
+            ]
 
 class EmailSenderDoc(Document):
     tenant_id: str
-    email_senders: list[str] = []
+    email_senders: List[str] = []
     is_active: bool = True
 
     class Settings:
-        name = "email_sender_doc"
\ No newline at end of file
+        name = "email_sender_doc"
+        indexes = ["tenant_id"]
+
+class EmailSenderStatusDoc(Document):
+    email_id: str
+    tenant_id: str
+    email_senders: List[str]
+    recipient_email: str
+    template_id: Optional[str] = None
+    subject: str
+    body: str
+    status: EmailSenderStatus = EmailSenderStatus.PENDING
+    sent_at: Optional[datetime] = None
+    failed_at: Optional[datetime] = None
+    error_message: Optional[str] = None
+    retry_count: int = 0
+    max_retries: int = 3
+    message_id: Optional[str] = None
+    created_at: datetime = datetime.utcnow()
+    updated_at: Optional[datetime] = None
+
+    class Settings:
+        name = "email_sender_status_doc"
+        indexes = [
+            "email_id",
+            "tenant_id"
+            ]
+
+class EmailTrackingDoc(Document):
+    email_id: str
+    tenant_id: str
+    recipient_email: str
+    template_id: Optional[str] = None
+    sent_at: datetime
+    message_id: Optional[str] = None
+
+    opened_at: Optional[datetime] = None
+    opened_count: int = 0
+
+    clicked_at: Optional[datetime] = None
+    clicked_count: int = 0
+    clicked_links: List[str] = []
+
+    user_agent: Optional[str] = None
+    ip_address: Optional[str] = None
+    tracking_enabled: bool = True
+    created_at: datetime = datetime.utcnow()
+    updated_at: Optional[datetime] = None
+
+    class Settings:
+        name = "email_tracking_doc"
+        indexes = [
+            "email_id",
+            "tenant_id"
+            ]
+
+class EmailBounceDoc(Document):
+    email: str
+    tenant_id: str
+    template_id: Optional[str] = None
+    bounce_type: BounceType
+    reason: str
+    bounced_at: datetime
+    original_email_id: Optional[str] = None
+    original_message_id: Optional[str] = None
+    processed: bool = False
+    processed_at: Optional[datetime] = None
+    created_at: datetime = datetime.utcnow()
+
+    class Settings:
+        name = "email_bounce_doc"
+        indexes = [
+            "email",
+            "tenant_id"
+            ]
+    
\ No newline at end of file