Thanks for your valuable comments, seems i had made wrong DNS entries against MX records which was causng this issue and as per ZhangHuangbin suggestion i have uncommented the local host entry. I have DKIM in place and txt record is also created on DNS end.
Now the problem is that when i am sendign emails out, they are getting rejected/deffered. Not sure how to take further from here.
BElow are the errors:
Sep 19 17:37:26 xxx-xxxx01 postfix/smtp[24312]: 6B14BB40670: to=<pankaishi@live.com>, relay=mx4.hotmail.com[65.55.37.88]:25, delay=2.6, delays=0.1/0.03/2.1/0.35, dsn=5.0.0, status=bounced (host mx4.hotmail.com[65.55.37.88] said: 550 O
U-002 (COL0-MC2-F14) Unfortunately, messages from 122.160.3.226 weren't sent. Please contact your Internet service provider since part of their network is on our block list. You can also refer your provider to http://mail.live.com/mail/t
roubleshooting.aspx#errors. (in reply to MAIL FROM command))
Sep 19 17:37:26 xxx-xxxx01 postfix/smtp[24312]: 6B14BB40670: lost connection with mx4.hotmail.com[65.55.37.88] while sending RCPT TO
Sep 19 17:37:26 xxx-xxxx01 postfix/cleanup[24295]: 1953FB40673: message-id=<20130919123726.1953FB40673@sxx-mail01.xxxxxxxxems.com>
Sep 19 17:37:28 xxx-xxxx01 postfix/smtp[24313]: 680BEB4066F: to=<itguxxxx@gmail.com>, relay=gmail-smtp-in.l.google.com[74.125.129.26]:25, delay=4.6, delays=0.1/0.03/2.1/2.4, dsn=5.7.1, status=bounced (host gmail-smtp-in.l.google.com[74
.125.129.26] said: 550-5.7.1 [122.160.3.226] The IP you're using to send mail is not authorized to 550-5.7.1 send email directly to our servers. Please use the SMTP relay at your 550-5.7.1 service provider instead. Learn more at 550 5.7.
1 http://support.google.com/mail/bin/answ … swer=10336 u5si4934351pbq.221 - gsmtp (in reply to end of DATA command))
Sep 19 17:37:28 xxx-xxxx01 postfix/cleanup[24311]: 17B9BB40670: message-id=<20130919123728.17B9BB40670@xxx-xxxx01.xxxxxxxxxxxxxxx.com>
Sep 19 17:37:28 xxx-xxxx01 postfix/bounce[24317]: 680BEB4066F: sender non-delivery notification: 17B9BB40670
Sep 19 17:37:28 xxx-xxxx01 postfix/qmgr[2032]: 17B9BB40670: from=<>, size=4426, nrcpt=1 (queue active)
Sep 19 17:37:28 xxx-xxxx01 postfix/qmgr[2032]: 680BEB4066F: removed
Sep 19 19:06:38 xxx-xxxx01 postfix/qmgr[2032]: A9160B4066F: from=<pankaj.sharma@xxxxxxxxxxxxxxx.com>, size=6254, nrcpt=1 (queue active)
Sep 19 19:06:40 xxx-xxxx01 postfix/smtp[25352]: A9160B4066F: host mx.in.airtel.com[125.17.151.114] refused to talk to me: 554 5.7.1 You are not allowed to connect.
Sep 19 19:06:41 xxx-xxxx01 postfix/smtp[25352]: A9160B4066F: to=<121@in.airtel.com>, relay=mx1.in.airtel.com[125.21.240.34]:25, delay=4791, delays=4787/0.02/3.2/0, dsn=4.7.1, status=deferred (host mx1.in.airtel.com[125.21.240.34] refused to talk to me: 554 5.7.1 You are not allowed to connect.)
i will appreciate your quick help please