During our European vacation, something broke on my mail server that I've been running from home for the past 3 years.
The server is a mac mini running OSX Server. Setup was a breeze and it's been performing with little to no maintenance all this time.
Of course breakage occurs when you're thousands of miles away. [Thanks Murphy]
The problem is a drive that is on the verge of failing and I will have to get a replacement to ensure the server's integrity
I took advantage of the opportunity to install an interim fix by building a linux server running CentOS and the iRedmail package
iRedmail is free and is pretty easy to install if you have at least some familiarity with a command line.
The installation really isn't much more than copying a couple commands that are listed on the install page
After creating the required mx record on my curry.com dns, emails started flowing and I'm testing a combination of the IMAP server and web client, which is the Roundcube software. Its pretty spiffy, especially compared to squirrel mail that I've been using to date and is a part of the OSX Server package
I'm especially impressed with the grey/white/black listing capabilities of iRedmail. So far it's really doing a good job, and I will post my findings again in a few days.