We have set up 2 Mailsweeper server as the mail gateway for inbound and outbound internet mails. Our Domino SMTP server is suppose to route Outbound mails via these servers as a relay host. We can set both mailsweeper server for failover for inbound internet mails via MX preferences. Can we do the same for Outbound mails? But there is only one value that we can put in the internet outbound relay host when we have 2 relay hosts, so how do we make it to dynamically fail over if one of the mailsweeper mail gateway is down?