I'm new to setting up mail servers. I was using my current domain on another host and had many email addresses set up as forwarders to my main gmail account.

I attempted to install Postfix and tried setting up forwarders like in this example
http://www.binarytides.com/postfix-mail-forwarding-debian/
however it does not seem to be working.

Does anyone have a guide on how to set up postfix from scratch to forward and only forward?

Thanks,
Zelkova