Author: Felix Lechner <felix.lechner@lease-up.com>
Description: Add host name to default MAILFROM (Closes: #1006464).
 The host on which the error occurred is mentioned in the subject and also in
 the message body, but some may find it useful in the From address, as well.

diff -Naurp mdadm.orig/Monitor.c mdadm/Monitor.c
--- mdadm.orig/Monitor.c
+++ mdadm/Monitor.c
@@ -627,7 +627,7 @@ static void send_event_email(const struc
 	if (info.mailfrom)
 		fprintf(mp, "From: %s\n", info.mailfrom);
 	else
-		fprintf(mp, "From: %s monitoring <root>\n", Name);
++		fprintf(mp, "From: %s monitoring <root@%s>\n", Name, info.hostname);
 	fprintf(mp, "To: %s\n", info.mailaddr);
 	fprintf(mp, "Subject: %s event on %s:%s\n\n", data->event_name, data->dev, info.hostname);
 	fprintf(mp, "This is an automatically generated mail message.\n");