--- fetchmail-6.3.6/pop3.c.kpop	2007-01-22 23:42:14.000000000 +0100
+++ fetchmail-6.3.6/pop3.c	2007-01-22 23:44:28.000000000 +0100
@@ -612,7 +612,11 @@
 
 	/* check if we are actually allowed to send the password */
 	if (ctl->server.authenticate == A_ANY
-		|| ctl->server.authenticate == A_PASSWORD) {
+	    || ctl->server.authenticate == A_PASSWORD
+	    || ((ctl->server.authenticate == A_KERBEROS_V4
+		 || ctl->server.authenticate == A_KERBEROS_V5)
+		&& ctl->server.service
+		&& strcmp(ctl->server.service, KPOP_PORT) == 0)) {
 	    strlcpy(shroud, ctl->password, sizeof(shroud));
 	    ok = gen_transact(sock, "PASS %s", ctl->password);
 	} else {