Hi everybody. I've been reading up how to install a mailserver for my office. At the local computer users group I was told about using PostFix on an Ubuntu system instead of Microsoft Exchange Server on Windows. I saw a demo at the user group, and thought it's worth a real look. They told us about this List as a User Community resource.
I want to just install a mailserver that listens on the Static address Comcast gave me, protects against these bots, spam and viruses, and then delivers it. So far I've only been reading the website documentation. I ordered a book too that should get here to Topeka in a few days. The book looked old and I'm a bit worried it'll be out of date. But for learning technology I like a good book with examples I can follow. On the website, I got to an article "Postfix Before-Queue Content Filter" at http://www.postfix.org/SMTPD_PROXY_README.html that looks like it does what I want. But I'm confused. It has boxes in the diagram there for 3 servers. Why 3? Do I need to have multiple computers to run this server? I was also looking at the Content Filters listed on the website. There's a lot of them. I don't have a really big computer for this so want to do something that doesn't use a lot of resources. Reading around I saw this Amvisd application which looks like overkill for me and complicated to set up. I found two applications that are listed and seem to do what I need for spam and viruses, Spam Assassin and Clam AntiVirus. Are these good choices? At the user group they mentioned a new feature built into PostFix. I found it, PostScreen. Is that even another server to deal with? Like I said I just don't understand if I can do all this with just one computer server, or have to use lots. If I can get this cleared up with some pointers and figure out what to do with that diagram I think I'd be off to the races. I'd appreciate any help. Jeremy Alsten
