Linux Fedora Core: How to set the mailing service of YUM Package Manager

To set the mailing notification system of the YUM Packages Manager on Fedora Core Linux systems (as SLC4) edit the file
/etc/sysconfig/yum-autoupdate

and uncomment and edit this line:
#YUMMAILTO="root"

YUM will send a notification email to root every time it update something. Mail messages sent to "root" are stored in the file /var/mail/root. simply open this file with an editor or with more or cat commands.

If you want to receive a notification email on a real e-mail box, you can add more addresses separated by coma, as for example:
YUMMAILTO=user@domain.com,"root"