Third Party Software for SpamAssassin
Open Source
[wiki:WebUserInterfaces Web User Interfaces] for Administration or per-user configuration
[wiki:IntegratedSolutions Open Source] Solutions that integrate SpamAssassin in some way
[wiki:StatsAndAnalyzers Statistics and Analyzers]
Central integration of sa-learn with [wiki:RemoteImapFolder IMAP Shared Folders]
[wiki:CustomRulesets Custom Rule-sets]
[wiki:CustomPlugins Custom Plugins]
[wiki:ThirdPartySoftware/Monitoring Monitoring SpamAssassin]
Commercial Services / Software
[wiki:ConnectionManagementSystems Connection Management Systems] that add high performance blocking and traffic shaping in front of SpamAssassin
[wiki:SpamFilteringServices Spam Filtering Services] offered by vendors using SpamAssassin
[wiki:CommercialNetworkAppliances Network Appliances] that use SpamAssassin
[wiki:CommercialWindows Windows Applications]
[wiki:CommercialMacOSX MacOS X Applications]
[wiki:CommercialUnix Unix Applications]
[wiki:CommercialMaybe Maybe] - Might Use SpamAssassin, we're not sure