Oops, I didn't realize I was in the ISPConfig2 subforum, this is about a clean postfix install on Ubuntu 10.04 LTS. Hopefully a mod can move this thread.
I am hoping I can avoid hardcoding the SMTP server, or I will run into problems when the 3rd party changes its MX records. I just want to force postfix to look up the MX records for site.com whenever e-mail is sent to site.com.
Mods: please move this thread, thanks!