jeremy.als...@imap-mail.com put forth on 4/7/2011 8:39 PM: > I think I get what you're saying about servers, processes and hosts. So > one host is good enough. It'll have multiple processes running on it. > So how many PostFix's, or these Instances of it, do I need to install to > just get what I want to do done?
You're way out in front of yourself. Setting up spam filtering will come well after you get the basic setup accomplished and working. First you need to cover the basics: 1. Do you have an internet domain registered for which your Postfix server will be accepting mail? This is a prerequisite. (If you simply want to grab the mail from your Gmail or Yahoo account to your "server" box, then you need something like fetchmail, not Postfix). Do you have DNS A and MX records configured for said domain pointing the public IP address in front of the Postfix host box? Have you port forwarded TCP 25 on your consumer broadband router to the internal address (192.168.x.x) of the Postfix host machine? 2. Have you considered a mail retrieval method? For instance IMAP or POP? Postfix only accepts the mail and delivers it, in your case most likely to the local disk on the Postfix host (physical box). You must then retrieve it at your client desktop PC with a mail user agent such as ThunderBird or Outlook. This will require an IMAP or POP3 server running on the Postfix host, such as Dovecot or Courier. These things must be up and working properly before considering implementing content filters or anything else beyond the basics. Answering your specific question, no, you absolutely don't need multiple Postfix instances for a SOHO configuration: http://www.postfix.org/SOHO_README.html -- Stan
