diff --git a/app/email_utils.py b/app/email_utils.py
index 27c1b48a..bc12eb82 100644
--- a/app/email_utils.py
+++ b/app/email_utils.py
@@ -161,6 +161,22 @@ def get_email_part(email_from):
     return email_from
 
 
+def get_email_local_part(email):
+    """
+    Get the local part from email
+    ab@cd.com -> ab
+    """
+    return email[: email.find("@")]
+
+
+def get_email_domain_part(email):
+    """
+    Get the domain part from email
+    ab@cd.com -> cd.com
+    """
+    return email[email.find("@") + 1 :]
+
+
 def add_dkim_signature(msg: EmailMessage, email_domain: str):
     if msg["DKIM-Signature"]:
         LOG.d("Remove DKIM-Signature %s", msg["DKIM-Signature"])
diff --git a/app/models.py b/app/models.py
index 53018ab1..e1d6c026 100644
--- a/app/models.py
+++ b/app/models.py
@@ -698,3 +698,6 @@ class CustomDomain(db.Model, ModelMixin):
 
     def nb_alias(self):
         return GenEmail.filter_by(custom_domain_id=self.id).count()
+
+    def __repr__(self):
+        return f"<Custom Domain {self.domain}>"
diff --git a/tests/test_email_utils.py b/tests/test_email_utils.py
index 47102e04..93106747 100644
--- a/tests/test_email_utils.py
+++ b/tests/test_email_utils.py
@@ -1,4 +1,9 @@
-from app.email_utils import get_email_name, get_email_part
+from app.email_utils import (
+    get_email_name,
+    get_email_part,
+    get_email_local_part,
+    get_email_domain_part,
+)
 
 
 def test_get_email_name():
@@ -13,3 +18,11 @@ def test_get_email_part():
     assert get_email_part("First Last<ab@cd.com>") == "ab@cd.com"
     assert get_email_part("  First Last   <ab@cd.com>") == "ab@cd.com"
     assert get_email_part("ab@cd.com") == "ab@cd.com"
+
+
+def test_get_email_local_part():
+    assert get_email_local_part("ab@cd.com") == "ab"
+
+
+def test_get_email_domain_part():
+    assert get_email_domain_part("ab@cd.com") == "cd.com"