--- a/src/dnsbl.cpp	Fri Apr 30 22:50:32 2004 -0700
+++ b/src/dnsbl.cpp	Sat May 01 07:44:51 2004 -0700
@@ -1117,13 +1117,25 @@
     unlink(pidpath);
     FILE *f = fopen(pidpath, "w");
     if (f) {
+#ifdef linux
+        // from a comment in the DCC source code:
+        // Linux threads are broken.  Signals given the
+        // original process are delivered to only the
+        // thread that happens to have that PID.  The
+        // sendmail libmilter thread that needs to hear
+        // SIGINT and other signals does not, and that breaks
+        // scripts that need to stop milters.
+        // However, signaling the process group works.
         fprintf(f, "-%d\n", (u_int)getpgrp());
+#else
+        fprintf(f, "%d\n", (u_int)getpid());
+#endif
         fclose(f);
     }
 
     time_t starting = time(NULL);
     int rc = smfi_main();
-    if (time(NULL) > starting+5*60) {
+    if ((rc != MI_SUCCESS) && (time(NULL) > starting+5*60)) {
         my_syslog("trying to restart after smfi_main()");
         loader_run = false;     // eventually the config loader thread will terminate
         execvp(argv[0], argv);