Atomicorp

I'm on an CentOS 5 / Plesk 9.3 VPS and I'd like to add selective SMTP relaying. I'm looking at http://cr.yp.to/qmail/faq/servers.html (first two questions) and it all makes sense, except that I have no idea where the correct files are to modify in order to install tcpserver.

Could anyone please direct me as to where they are if they know? My setup uses xinetd not inetd

I figured it out actually. How to do this:

Just scrap any instructions to do with qmail and tcp server, simply go to your general email settings in PLESK (8x - Server > Mail | 9x - Settings > Mail Settings) and add the IPs you want to be able to send without any authentication.

Pretty easy, surprised there's no documentation on this (or that it's so hard to find if there is).