Ralf Hildebrandt put forth on 11/27/2009 6:20 AM: > Then it of course needs a publich IP addresses
Or, at least, a public IP NAT/PAT'd to it by your firewall. It will also obviously need PTR, A, and MX records. Also, this may be helpful: http://www.postfix.org/STANDARD_CONFIGURATION_README.html#firewall -- Stan
