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The preflight mass-check buildbot is up and running at http://buildbot.spamassassin.org:8011/ and also proxied at http://buildbot.spamassassin.org/preflight/ (although this has buffering issues due to a bug in httpd mod_proxy).
Every time something is checked into SVN, this will wake up and immediately start running mass-checks using that latest code and rules.
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