Looking through the logs, I have noticed an attempt to send out mail which temporary local fails. I did a dig mx and noticed there is no mx record. I then tried to connect to the email address domain portion of the name. Sure enough, I was able to connect.
Is this legitimate configuration of mail server? Is there a way to configure postfix saying that if there is no mx record attempt to connect to connect using domain portion? What is the exposure? Thanks in advance
