Upgrade to 16 about a week ago, on build 16.3.6508. In the process I setup a few of my domains to have there own IP, host name, cert and bindings. As I understand it outbound ip4 setting should tell SmarterMail to send email out the specified address. According to the outgoing logs that is not happening. The server was restarted and I don't see and dependency for it to work in SmarterMail Help. Any direction/advice would be appreciated.