diff --git a/flask_mail.py b/flask_mail.py
index a485782..77c857c 100644
--- a/flask_mail.py
+++ b/flask_mail.py
@@ -429,15 +429,16 @@ def _record(message, app):
         finally:
             email_dispatched.disconnect(_record)
 
-    def send(self, message):
+    def send(self, message, envelope_from=None):
         """Sends a single message instance. If TESTING is True the message will
         not actually be sent.
 
         :param message: a Message instance.
+        :param envelope_from: Email address to be used in MAIL FROM command.
         """
 
         with self.connect() as connection:
-            message.send(connection)
+            connection.send(message, envelope_from)
 
     def send_message(self, *args, **kwargs):
         """Shortcut for send(msg).