diff --git a/classes/smtp.py b/classes/smtp.py
index a8081df..086d7b7 100644
--- a/classes/smtp.py
+++ b/classes/smtp.py
@@ -20,6 +20,8 @@ class SMTP:
     def send_message(self, message, *args, **kwargs):
         if not message.get("From"):
             message["From"] = self.sender
+        elif message["From"] == "None":
+            message.replace_header("From", self.sender)
 
         self.connection.send_message(message, *args, **kwargs)