The Perfect Setup - Debian Etch: smart_host

[bidevi]

On Fedora Core 6 in /etc/mail/sendmail.mc I configured Sendmail's smart_host, so visitors of my site practically use my ISP's smtp server to send me their message filling in a web form. For configuration I used instructions provided by: http://www.go2linux.org/node/35.

Now I have Postfix, because I've set up Debian Etch following the guide lines of The Perfect Setup instructions.

Can anyone tell me how to do a smart-host like configuration now, so my visitors can keep on doing the same thing: send me mail using a web form on my site?