Delay in sending email to-from localhost in Sendmail

Hi Friends,

I am very much new to sendmail or any other mta. I just installed sendmail 8.14 on my rhel6 machine. I was trying to send email to local user but after entering the message when i press CTRL-D it simply hangs. I also tried sending email via mutt but again mutt also hangs. It sends the email but after taking a quite a long time like 2-3 minutes.

Here are the logs confirming that delay

Jun 22 21:03:07 test sendmail[2119]: q5N133lp002119: from=rohit, size=9, class=0, nrcpts=1, msgid=<201206230103.q5N133lp002119@test.home.com>, relay=root@localhost
Jun 22 21:05:55 test sm-mta[2120]: q5N137CR002120: from=<rohit@test.home.com>, size=263, class=0, nrcpts=1, msgid=<201206230103.q5N133lp002119@test.home.com>, proto=ESMTP, daemon=MTA, relay=localhost [127.0.0.1]
Jun 22 21:05:55 test sendmail[2119]: q5N133lp002119: to=stu, ctladdr=rohit (502/505), delay=00:02:52, xdelay=00:02:48, mailer=relay, pri=30009, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (q5N137CR002120 Message accepted for delivery)
Jun 22 21:05:55 test sm-mta[2220]: q5N137CR002120: to=<stu@test.home.com>, ctladdr=<rohit@test.home.com> (502/505), delay=00:00:00, xdelay=00:00:00, mailer=local, pri=30449, dsn=2.0.0, stat=Sent

So could any one suggest what could be the issue. IPTables is not running on the system.

Thanks in advance