mailcow/src/mailcow-dockerized/data/conf/rspamd/local.d/composites.conf

MX_IMPLICIT {
  expression = "MX_GOOD & MX_MISSING";
  score = -0.01;
}
VIRUS_FOUND {
  expression = "CLAM_VIRUS & !MAILCOW_WHITE";
  score = 2000.0;
}
# Bad policy from free mail providers
FREEMAIL_POLICY_FAILURE {
  expression = "-g+:policies & !DMARC_POLICY_ALLOW & !MAILLIST & ( FREEMAIL_ENVFROM | FREEMAIL_FROM ) & !WHITELISTED_FWD_HOST";
  score = 16.0;
}
# Applies to freemail with undisclosed recipients
FREEMAIL_TO_UNDISC_RCPT {
  expression = "FREEMAIL_FROM & ( MISSING_TO | R_UNDISC_RCPT | TO_EQ_FROM )";
  score = 5.0;
}
# Bad policy from non-whitelisted senders
# Remove SOGO_CONTACT symbol for fwd hosts and senders with broken policy
SOGO_CONTACT_EXCLUDE {
  expression = "(-WHITELISTED_FWD_HOST | -g+:policies) & ^SOGO_CONTACT & !DMARC_POLICY_ALLOW";
}
# Spoofed header from and broken policy (excluding sieve host, rspamd host, whitelisted senders, authenticated senders and forward hosts)
SPOOFED_UNAUTH {
  expression = "!MAILCOW_AUTH & !MAILCOW_WHITE & !RSPAMD_HOST & !SIEVE_HOST & MAILCOW_DOMAIN_HEADER_FROM & !WHITELISTED_FWD_HOST & -g+:policies";
  score = 50.0;
}
# Only apply to inbound unauthed and not whitelisted
OLEFY_MACRO {
  expression = "!MAILCOW_AUTH & !MAILCOW_WHITE & OLETOOLS";
  score = 20.0;
  policy = "remove_weight";
}
# Applies to a content filter map
BAD_WORD_BAD_TLD {
  expression = "FISHY_TLD & ( BAD_WORDS | BAD_WORDS_DE )";
  score = 10.0;
}
# Forged with bad policies and not fwd host, keep bad policy symbols
FORGED_W_BAD_POLICY {
  expression = "( -g+:policies | -R_SPF_NA) & ( ~FROM_NEQ_ENVFROM | ~FORGED_SENDER ) & !WHITELISTED_FWD_HOST & !DMARC_POLICY_ALLOW";
  score = 3.0;
}
# Keep negative (good) scores for rbl, policies and hfilter, disable neural group
WL_FWD_HOST {
  expression = "-WHITELISTED_FWD_HOST & (^g+:rbl | ^g+:policies | ^g+:hfilter | ^g:neural)";
}
# Exclude X-Spam like flags from scoring from fwd and sieve hosts
UPSTREAM_CHECKS_EXCLUDE_FWD_HOST {
  expression = "(-SIEVE_HOST | -WHITELISTED_FWD_HOST) & (^UNITEDINTERNET_SPAM | ^SPAM_FLAG | ^KLMS_SPAM | ^AOL_SPAM | ^MICROSOFT_SPAM)";
}
# Remove fuzzy group from bounces
BOUNCE_FUZZY {
  expression = "-BOUNCE & ^g+:fuzzy";
}
# Remove bayes ham if fuzzy denied
FUZZY_HAM_MISMATCH {
  expression = "( -FUZZY_DENIED | -MAILCOW_FUZZY_DENIED | -LOCAL_FUZZY_DENIED ) & ( ^BAYES_HAM | ^NEURAL_HAM_LONG | ^NEURAL_HAM_SHORT )";
}
# Remove bayes spam if local fuzzy white
FUZZY_SPAM_MISMATCH {
  expression = "( -LOCAL_FUZZY_WHITE ) & ( ^BAYES_SPAM | ^NEURAL_SPAM_LONG | ^NEURAL_SPAM_SHORT )";
}
WL_FWD_HOST {
  expression = "-WHITELISTED_FWD_HOST & (^g+:rbl | ^g+:policies | ^g+:hfilter | ^g:neural)";
}
ENCRYPTED_CHAT {
  expression = "CHAT_VERSION_HEADER & ENCRYPTED_PGP";
}