Statistics and log analyzers
These are tools to analyze SpamAssassin logs and generate reports. Generally, they take syslog data logged by the 'spamd' server as input.
[http://logreport.org/lire/or/email.php logreport.org] apparently has a syslog analyzer that can grok SpamAssassin logs:
[http://mailgraph.schweikert.ch/ mailgraph]: Generates graphs from syslogs. [http://www.stat.ee.ethz.ch/mailgraph.cgi demo] available.
[http://mailscannermrtg.sourceforge.net/mailscanner-mrtg/ mailscanner-mrtg] – [http://mailscannermrtg.sourceforge.net/mailscanner-mrtg/ demo] available
[http://mailwatch.sourceforge.net/ mailwatch] – no demo, but the previous link has screenshots
[http://www.monkeynoodle.org/comp/tools/spam monkeynoodle.org] spamassassin MRTG scripts: Scans the maillog/syslog and feeds the SA results into a format from which MRTG is used to create graphs. [http://www.monkeynoodle.org/mrtg/felix.html demo] available
[http://munin.sf.net/ munin]: Munin is a tool for graphing all sorts of information about one or more servers and displaying it in a web interface. It uses the excellent RRDTool (written by Tobi Oetiker) and is written in Perl. [http://www.linpro.no/projects/munin/example/ilmari.org/marvin.home.ilmari.org-spamstats.html demo] available
[http://www.postconf.com/software PostConf] – Postfix and SA management and content analysis (free and commercial)
[http://www.inter7.com/mrtg.html qmailmrtg] – [http://www.sk-branik.si/qmailmrtg example] available
[http://www.rulesemporium.com/programs/sa-stats.txt sa-stats.pl (Dallas Engelken's version)] : Generates a report in text or HTML from a spamd log file or from syslog. not to be confused with the "sa-stats.pl" in the SpamAssassin distribution; it's entirely different
[http://nossie.addicts.nl/projects/sa-exim-stats/ sa-exim-stats] : Generates rrdtool graphs from sa-exim log files.
[http://spamaps.org/spamdstats.php spamdstats]: Continuously parses spamd's log file in the background and stores various data in one Berkely DB file to be read by a second script.
[http://www.while.homeunix.net/mailstats/ vispan] – [http://hosting.boys-brigade.org.uk/mrtg demo] available
[http://www.agrav.net/software sa-daily-report]: Generates and mails a report of all the email quarantined as spam the previous day, to allow checking for false positives.
[http://ryanlee.org/software/mozilla/thunderbird/spamness/ spamness]: An extension for [http://www.mozilla.com/en-US/thunderbird/2.0.0.0/releasenotes/ Mozilla Thunderbird 2.0] that gives visual feedback on each message's SpamAssassin score. Screenshots available. Contributors especially welcome, please contact the author if you might be interested in helping improve and maintain the addon.
If you plan to parse spamd's syslog output, some helpful notes can be found at SpamdSyslogFormat.