[root@devel3 root]# which sendmail
/usr/sbin/sendmail
[root@devel3 root]# /usr/sbin/sendmail -t
To: root@localhost

Hello Me!
.
[root@devel3 root]# tail /var/mail/root
Received: (from root@localhost)
        by devel3.XXXXXXXXXX.org (8.11.6/8.11.6) id h933ZZq18591;
        Fri, 3 Oct 2003 03:35:35 GMT
Date: Fri, 3 Oct 2003 03:35:35 GMT
From: root <root@devel3.XXXXXXXXX.org>
Message-Id: <200310030335.h933ZZq18591@devel3.XXXXXXXXX.org>
To: root@devel3.XXXXXXXXX.org

Hello Me!

[root@devel3 root]#