i can receive emails from any domain, but cant send mails to outer domain

My log is here :


Aug 13 19:06:01 trucktracking postfix/smtpd[4845]: connect from trucktracking.net[61.246.236.210]
Aug 13 19:06:01 trucktracking postfix/smtpd[4845]: 9159F337590: client=trucktracking.net[61.246.236.210]
Aug 13 19:06:01 trucktracking postfix/cleanup[4865]: 9159F337590: message-id=<31107191.0.1281706561226.JavaMail.root@trucktr acking>
Aug 13 19:06:01 trucktracking postfix/qmgr[28435]: 9159F337590: from=<admin@trucktracking.net>, size=617, nrcpt=1 (queue active)
Aug 13 19:06:01 trucktracking postfix/smtpd[4845]: disconnect from trucktracking.net[61.246.236.210]
Aug 13 19:06:01 trucktracking amavis[27311]: (27311-01) ESMTP::10024 /opt/zimbra/data/amavisd/tmp/amavis-20100813T190601-27311: <admin@trucktracking.net> -> <jayarajmohan@kggroup.com> SIZE=617 Received: from trucktracking.net ([127.0.0.1]) by localhost (trucktracking.net [127.0.0.1]) (amavisd-new, port 10024) with ESMTP for <jayarajmohan@kggroup.com>; Fri, 13 Aug 2010 19:06:01 +0530 (IST)
Aug 13 19:06:01 trucktracking amavis[27311]: (27311-01) Checking: 45orPxkhYziS [61.246.236.210] <admin@trucktracking.net> -> <jayarajmohan@kggroup.com>
Aug 13 19:06:01 trucktracking amavis[27311]: (27311-01) Open relay? Nonlocal recips but not originating: jayarajmohan@kggroup.com
Aug 13 19:06:03 trucktracking zmmailboxdmgr[5069]: status requested
Aug 13 19:06:03 trucktracking zmmailboxdmgr[5069]: status OK
Aug 13 19:06:06 trucktracking postfix/smtpd[5162]: connect from localhost.localdomain[127.0.0.1]
Aug 13 19:06:06 trucktracking postfix/smtpd[5162]: 648CC337592: client=localhost.localdomain[127.0.0.1]
Aug 13 19:06:06 trucktracking postfix/cleanup[4865]: 648CC337592: message-id=<31107191.0.1281706561226.JavaMail.root@trucktr acking>
Aug 13 19:06:06 trucktracking postfix/qmgr[28435]: 648CC337592: from=<admin@trucktracking.net>, size=1083, nrcpt=1 (queue active)
Aug 13 19:06:06 trucktracking amavis[27311]: (27311-01) FWD via SMTP: <admin@trucktracking.net> -> <jayarajmohan@kggroup.com>,BODY=7BIT 250 2.0.0 Ok, id=27311-01, from MTA([127.0.0.1]:10025): 250 2.0.0 Ok: queued as 648CC337592
Aug 13 19:06:06 trucktracking amavis[27311]: (27311-01) Passed CLEAN, [61.246.236.210] [61.246.236.210] <admin@trucktracking.net> -> <jayarajmohan@kggroup.com>, Message-ID: <31107191.0.1281706561226.JavaMail.root@trucktrack ing>, mail_id: 45orPxkhYziS, Hits: 2.294, size: 617, queued_as: 648CC337592, 4821 ms
Aug 13 19:06:06 trucktracking postfix/smtp[4866]: 9159F337590: to=<jayarajmohan@kggroup.com>, relay=127.0.0.1[127.0.0.1]:10024, delay=4.9, delays=0.02/0.01/0.01/4.8, dsn=2.0.0, status=sent (250 2.0.0 Ok, id=27311-01, from MTA([127.0.0.1]:10025): 250 2.0.0 Ok: queued as 648CC337592)
Aug 13 19:06:06 trucktracking postfix/qmgr[28435]: 9159F337590: removed
Aug 13 19:06:06 trucktracking amavis[27311]: (27311-01) extra modules loaded: /opt/zimbra/zimbramon/lib/i386-linux-thread-multi/auto/Net/SSLeay/autosplit.ix, /opt/zimbra/zimbramon/lib/i386-linux-thread-multi/auto/Net/SSLeay/randomize.al, IO/Socket/SSL.pm, Net/LDAP/Extension.pm, Net/SSLeay.pm
Aug 13 19:06:07 trucktracking postfix/smtp[5163]: 648CC337592: host mail.kggroup.com[203.199.234.24] refused to talk to me: 554 You are not allowed to connect.
Aug 13 19:06:11 trucktracking postfix/smtp[5163]: 648CC337592: to=<jayarajmohan@kggroup.com>, relay=mail1.kggroup.com[203.199.234.18]:25, delay=4.7, delays=0.02/0.01/4.6/0, dsn=4.0.0, status=deferred (host mail1.kggroup.com[203.199.234.18] refused to talk to me: 554 You are not allowed to connect.)