diff -ru bogom-1.9.2/milter.c bogom-1.9.3dev/milter.c
--- bogom-1.9.2/milter.c	2008-06-26 06:47:40.000000000 +0900
+++ bogom-1.9.3dev/milter.c	2022-04-29 15:04:18.233560798 +0900
@@ -32,6 +32,7 @@
 #include <string.h>
 #include <unistd.h>
 #include <pwd.h>
+#define SYSLOG_NAMES
 #include <syslog.h>
 #include <regex.h>
 #include <time.h>
@@ -957,11 +958,14 @@
 	};
 
 	int opt;
-	const char *opts="hu:p:b:RDtvx:w:c:l:ds:f:q:S";
+	const char *opts="hu:p:b:RDtvx:w:c:l:ds:f:q:SF:";
 
 	struct passwd *pw=NULL;
 	struct stat st;
 
+	int i ;
+	int logFacility = LOG_DAEMON ;
+
 	while((opt=getopt(argc, argv, opts))!=-1)
 		switch(opt)
 		{
@@ -1031,6 +1035,16 @@
 			case 'S':
 				spamicity=1;
 				break;
+
+			case 'F':
+				for ( i = 0 ; facilitynames[i].c_name != NULL ; i ++ ) {
+					if ( strcmp( facilitynames[i].c_name, optarg ) == 0 ) {
+						logFacility = facilitynames[i].c_val ;
+						break;
+					}
+				}
+				break;
+
 		}
 
  	/* read configuration file */
@@ -1302,7 +1316,7 @@
 	/* setup time to timezone */
 	tzset();
 
-	openlog("bogom", LOG_PID | LOG_NDELAY, LOG_DAEMON);
+	openlog("bogom", LOG_PID | LOG_NDELAY, logFacility );
 
 	pidfile_fd=fopen(pidfile, "w");
 	if(!pidfile_fd)