Question : Changing domain on postfix and courier

I've been setting up a dedicated Ubuntu server with Postfix and Courier to get it tested and ready to migrate a live site to it. During the testing process, I assigned it a test domain that I have. Now that it's ready to go, I need to switch it to the real domain name. With the exception of /etc/hosts, /etc/hostname, and postfix/main.cf, where else do I need to make the change?

Answer : Changing domain on postfix and courier

Not unless you hard coded it in your config and if you did that you should know where you did that.