[Rspamd] Better support for DeltaChat

data/conf/rspamd/local.d/composites.conf

@@ -34,21 +34,21 @@ OLEFY_MACRO {
 }
 # Applies to a content filter map
 BAD_WORD_BAD_TLD {
-  expression = "FISHY_TLD & ( BAD_WORDS | BAD_WORDS_DE )"
+  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"
+  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)"
+  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)"
+  expression = "(-SIEVE_HOST | -WHITELISTED_FWD_HOST) & (^UNITEDINTERNET_SPAM | ^SPAM_FLAG | ^KLMS_SPAM | ^AOL_SPAM | ^MICROSOFT_SPAM)";
 }
 # Remove fuzzy group from bounces
 BOUNCE_FUZZY {
@@ -56,9 +56,15 @@ BOUNCE_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 )"
+  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 )"
+  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 & ^DYN_RL_CHECK & ^BCC";
 }

data/conf/rspamd/local.d/multimap.conf

@@ -19,6 +19,14 @@ BULK_HEADER {
   symbols_set = ["BULK_HEADER"];
 }
 
+CHAT_VERSION_HEADER {
+  type = "header";
+  header = "Chat-Version";
+  map = "${LOCAL_CONFDIR}/custom/chat_versions.map";
+  regexp = true;
+  symbols_set = ["CHAT_VERSION_HEADER"];
+}
+
 BAD_HEADER {
   type = "content";
   map = "${LOCAL_CONFDIR}/custom/bad_header.map";