Here are some of the ways SpamAssassin can be used:
- UsedViaProcmail: run from the traditional UNIX .procmailrc file
- UsingSiteWide: using SpamAssassin site-wide
- IntegratedInMta: built into the whole mail-delivery process in the Mail Transfer Agent (sendmail, Exim, Postfix etc.)
- MailProxy: as a proxy server
- Run against a RemoteImapFolder
- UsingOnOsx
- UsingOnWindows
- CommercialProducts: commercial products that use SpamAssassin internally
- Really needed docs - someone please add this, "What if Spam Assasin is installed already on your ISP's mailserver and it doesn;t do anything. Where are docs for seting filter rules?" Or is this just not how it works and is this not something for people who are not Unix administrators to consider?