Removed "-a /tmp/tst.tar.gz" & still get the same error. Figured that /root/dead.letter is actually a logfile & its contents is shown below: # more /root/dead.letter Date: Fri, 18 Jul 2014 19:01:58 +0800 From: root@current_svr.mgmt.a-cloud.gov.au To: sunhux@xxxxxxxxx Subject: rh1 via smtp1 Message-ID: <53c8fea6.0u+3/R+bETa4Hsbt%root@current_svr.mgmt.a-cloud.gov.au> User-Agent: Heirloom mailx 12.4 7/29/08 MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="=_53c8fea6.QPYvMxRlHrS05uxwNfXaW0elMaSu2c32+VTgj87G8Ruar7Yz" This is a multi-part message in MIME format. --=_53c8fea6.QPYvMxRlHrS05uxwNfXaW0elMaSu2c32+VTgj87G8Ruar7Yz Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline root:x:0: bin:x:1:bin,daemon . . . -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list