[Rspamd] Add SIEVE_HOST map and skip spoof check for these IPs

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

@@ -17,6 +17,6 @@ SOGO_CONTACT_SPOOFED {
   expression = "(R_SPF_PERMFAIL | R_SPF_SOFTFAIL | R_SPF_FAIL) & ~SOGO_CONTACT";
 }
 SPOOFED_UNAUTH {
-  expression = "!MAILCOW_AUTH & !MAILCOW_WHITE & !R_SPF_ALLOW & !DMARC_POLICY_ALLOW & !ARC_ALLOW";
+  expression = "!MAILCOW_AUTH & !MAILCOW_WHITE & !R_SPF_ALLOW & !DMARC_POLICY_ALLOW & !ARC_ALLOW & !SIEVE_HOST";
   score = 5.0;
 }

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

@@ -83,3 +83,9 @@ GLOBAL_RCPT_BL {
   prefilter = true;
   action = "reject";
 }
+
+SIEVE_HOST {
+  type = "ip";
+  map = "$LOCAL_CONFDIR/custom/dovecot_trusted.map";
+  symbols_set = ["SIEVE_HOST"];
+}