diff --git a/app/email_utils.py b/app/email_utils.py
index e321e96b..bef720e6 100644
--- a/app/email_utils.py
+++ b/app/email_utils.py
@@ -1468,6 +1468,7 @@ def save_envelope_for_debugging(envelope: Envelope, file_name_prefix=None) -> st
 
     return ""
 
+
 def generate_verp_email(
     verp_type: VerpType, object_id: int, sender_domain: Optional[str] = None
 ) -> str:
diff --git a/tests/test_email_utils.py b/tests/test_email_utils.py
index 3e7ec9f1..ae68b414 100644
--- a/tests/test_email_utils.py
+++ b/tests/test_email_utils.py
@@ -802,6 +802,7 @@ def test_generate_verp_email():
     assert info[0] == VerpType.bounce_forward
     assert info[1] == 1
 
+
 def test_add_header_multipart_with_invalid_part():
     msg = load_eml_file("multipart_alternative.eml")
     parts = msg.get_payload() + ["invalid"]