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Thanks for your response. I found out the problem myself by using the search facility in Experts-exchange. The issue the Dj entry in /etc/mail/sendmail.cf was not configured. I added that entry and restarted the sendmail service, then everything become fine. I have very less experience in Sendmail and thats why I didn't check this basic configuration. 
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Thanks for your response. I found out the problem myself by using the search facility in Experts-exchange. The issue the Dj entry in /etc/mail/sendmail.cf was not configured. I added that entry and restarted the sendmail service, then everything become fine. I have very less experience in Sendmail and thats why I didn't check this basic configuration.

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Hello Experts,<br />
<br />
I'm getting this error when I try to send mails from the terminal. Sendmail is working fine. Please advice.<br />
<br />
thuban--root[21] mailx -v ojk@cypress.com<br />
Subject: test mail<br />
.<br />
EOT<br />
thuban--root[22] ojk@cypress.com... Deferred: Name server: mailhost.ind.cypres<br />
s.com: host name lookup failure<br />
<br />
thuban--root[23] ps -ef | grep sendmail<br />
&nbsp; &nbsp; root &nbsp;1946 &nbsp; &nbsp; 1 &nbsp;0 &nbsp; Nov 09 ? &nbsp; &nbsp; &nbsp; &nbsp;0:00 /usr/lib/sendmail -bd -q15m<br />
&nbsp; &nbsp; root &nbsp;5741 &nbsp;5728 &nbsp;0 15:20:00 pts/2 &nbsp; &nbsp;0:00 grep sendmail<br />
thuban--root[24]<br />
thuban--root[22] uname -a<br />
SunOS thuban 5.8 Generic_108528-19 sun4u sparc SUNW,Ultra-5_10<br />
thuban--root[23]<br />
<br />
<br />
Thanks,<br />
Ashok
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Hello Experts,

I'm getting this error when I try to send mails from the terminal. Sendmail is working fine. Please advice.

thuban--root[21] mailx -v ojk@cypress.com
Subject: test mail
.
EOT
thuban--root[22] ojk@cypress.com... Deferred: Name server: mailhost.ind.cypres
s.com: host name lookup failure

thuban--root[23] ps -ef | grep sendmail
    root  1946     1  0   Nov 09 ?        0:00 /usr/lib/sendmail -bd -q15m
    root  5741  5728  0 15:20:00 pts/2    0:00 grep sendmail
thuban--root[24]
thuban--root[22] uname -a
SunOS thuban 5.8 Generic_108528-19 sun4u sparc SUNW,Ultra-5_10
thuban--root[23]


Thanks,
Ashok

Mail problem

Unix is a multitasking, multi-user computer operating system originally developed in 1969 at Bell Labs. Today, it is a modern OS with many commercial flavors and licensees, including FreeBSD, Hewlett-Packard’s UX, IBM AIX and Apple Mac OS-X. Apart from its command-line interface, most UNIX variations support the standardized X Window System for GUIs, with the exception of the Mac OS, which uses a proprietary system.