http://en.opensuse.org/Mail_server_HOWTO
http://www.3111skyline.com/linux/openSuSE-server.php#mail

I have for now nearly 10 years a small server available from the net, as http and mail server for me and my family. This server was, some time ago, hosted on my own DSL line, being physically on an old laptop on my desk (headless - no monitor).

Some years ago I decided to earn a hosted server at http://kimsufi.com, the price being very low. I now (jully 2009) replaced this one by a new one, at the same place and price, the new being much more powerfull. For approx €25 a month, I get a celeron, 1Gb ram and 250Gb hard drive.

I tried to use Ubuntu LTS, but it's management system is too far from openSUSE for me to be comfortable with it and I returned to openSUSE 11.1. My Hosting company makes it very difficult to run Linux distribution not offered by them (because they like to have run time monitor to the hardware), but they offer a great choice, including the very last 11.1 openSUSE.

One can also get a server from my Domain name provider, http://gandi.net, from as low as €12 a month, and this one can be used for the lenght you want, minimum a month but then you can stop exactly when you want (kimsufi allows stopping at any month end).