Hello Everyone, I'm testing out a setup using Fedora 13 and ISPconfig 2. I following the How-To and everything is working perfectly. The problem is I have these two expensive devices on the internal private network that sends out scanned documents as attachments through e-mail but are a little old and they don't support authentication. Since they are on the private network it's no problem running a SMTP relay server with authentication turned off. The server I'm setting up right now is configured for authentication (ISPConfig) and will be used on the public side and probably as a router between the private network and the internet. Should I run a second instance of Postfix and bind it to the adapter on the private side so it can be an open relay or is there a way I can specify not to authenticate from these two specific IP addresses. Thank in advance for your help.