Index: cron3.0pl1/config.h
===================================================================
--- cron3.0pl1.orig/config.h	2011-08-11 14:14:30.016946551 -0500
+++ cron3.0pl1/config.h	2011-08-11 14:15:19.417274025 -0500
@@ -42,8 +42,8 @@
 			 */
 
 #define MAILCMD _PATH_SENDMAIL					/*-*/
-#define MAILARGS "%s -FCronDaemon -odi -oem -or0s %s"		/*-*/
-			/* -Fx	 = set full-name of sender
+#define MAILARGS "%s -f %s -odi -oem -or0s %s"		/*-*/
+			/* -f	 = set sender address
 			 * -odi	 = Option Deliverymode Interactive
 			 * -oem	 = Option Errors Mailedtosender
 			 * -or0s = Option Readtimeout -- don't time out
Index: cron3.0pl1/do_command.c
===================================================================
--- cron3.0pl1.orig/do_command.c	2011-08-11 14:06:52.917216917 -0500
+++ cron3.0pl1/do_command.c	2011-08-11 14:09:39.507091277 -0500
@@ -364,10 +364,12 @@
 				register char	**env;
 				auto char	mailcmd[MAX_COMMAND];
 				auto char	hostname[MAXHOSTNAMELEN];
+				auto char    sender[MAX_TEMPSTR];
 
 				(void) gethostname(hostname, MAXHOSTNAMELEN);
+				(void) sprintf(sender, "root@%s", hostname);
 				(void) sprintf(mailcmd, MAILARGS,
-					       MAILCMD, mailto);
+					       MAILCMD, sender, mailto);
 				if (!(mail = cron_popen(mailcmd, "w"))) {
 					perror(MAILCMD);
 					(void) _exit(ERROR_EXIT);