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Shortcircuiting example
# local whitelists, or mails via trusted hosts
meta SC_HAM (USER_IN_WHITELIST||USER_IN_DEF_WHITELIST||ALL_TRUSTED)
priority SC_HAM -1000
shortcircuit SC_HAM ham
score SC_HAM -20
# slower, network-based whitelisting
meta SC_NET_HAM (USER_IN_DKIM_WHITELIST||USER_IN_SPF_WHITELIST)
priority SC_NET_HAM -500
shortcircuit SC_NET_HAM ham
score SC_NET_HAM -20
# run Spamhaus tests early, and shortcircuit if they fire
meta SC_SPAMHAUS (RCVD_IN_XBL||RCVD_IN_SBL||RCVD_IN_PBL)
priority SC_SPAMHAUS -400
shortcircuit SC_SPAMHAUS spam
score SC_SPAMHAUS 20