Delivery has failed to these recipients or distribution lists: rsundaresan@polygenta.com Your message wasn't delivered because of security policies. Microsoft Exchange will not try to redeliver this message for you. Please provide the following diagnostic text to your system administrator. The following organization rejected your message: CH1EHSMHS021.bigfish.com. _____ Sent by Microsoft Exchange Server 2007 Diagnostic information for administrators: Generating server: aakit001.aakit.com rsundaresan@polygenta.com CH1EHSMHS021.bigfish.com #550 5.7.1 Service unavailable; Client host [221.134.221.66] blocked using Blocklist 1, mail from IP banned; To request removal from this list please forward this message to delist@messaging.microsoft.com. ## Original message headers: Received: from aakit001.aakit.com ([192.168.10.56]) by aakit001.aakit.com ([192.168.10.56]) with mapi; Mon, 11 Jun 2012 11:41:04 +0530 From: Divyang Bhadresha <divyang.bhadresha@aakit.com> To: "rsundaresan@polygenta.com" <rsundaresan@polygenta.com> Importance: high Disposition-Notification-To: Divyang Bhadresha <divyang.bhadresha@aakit.com> Return-Receipt-To: <divyang.bhadresha@aakit.com> Date: Mon, 11 Jun 2012 11:40:58 +0530 Subject: AAKIT EXIM implementation partner Thread-Topic: AAKIT EXIM implementation partner Thread-Index: Ac1HmPetrIUapbVFRKa7Tde3aTT6BQ== Message-ID: <3EB35A8FF64A7C4B97FF237677CDCBDC0334B9516CBE@aakit001.aakit.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: yes X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: multipart/mixed; boundary="_008_3EB35A8FF64A7C4B97FF237677CDCBDC0334B9516CBEaakit001aak_" MIME-Version: 1.0

Connecting IP seems Blocked - Delist it firstSyed MM - Messaging SME - IBM || MCTS: Microsoft Exchange Server 2007/2010 || MCSE || MCSA ||

hi, May be you have send some spam messages, or you have't PTR record. There are so many reasons. thanks,CastinLu TechNet Community Support

HI castinlu Again same problem... pls give me a solution ...this problem...? Delivery has failed to these recipients or distribution lists: rsundaresan@polygenta.com Your message wasn't delivered because of security policies. Microsoft Exchange will not try to redeliver this message for you. Please provide the following diagnostic text to your system administrator. The following organization rejected your message: CH1EHSMHS010.bigfish.com. _____ Sent by Microsoft Exchange Server 2007 Diagnostic information for administrators: Generating server: aakit001.aakit.com rsundaresan@polygenta.com CH1EHSMHS010.bigfish.com #550 5.7.1 Service unavailable; Client host [221.134.221.66] blocked using Blocklist 1, mail from IP banned; To request removal from this list please forward this message to delist@messaging.microsoft.com. ## Original message headers: Received: from aakit001.aakit.com ([192.168.10.56]) by aakit001.aakit.com ([192.168.10.56]) with mapi; Mon, 2 Jul 2012 16:22:57 +0530 From: Divyang Bhadresha <divyang.bhadresha@aakit.com> To: "rsundaresan@polygenta.com" <rsundaresan@polygenta.com> Importance: high Date: Mon, 2 Jul 2012 16:22:37 +0530 Subject: AAKIT EXIM implementation partner Thread-Topic: AAKIT EXIM implementation partner Thread-Index: Ac1HmPetrIUapbVFRKa7Tde3aTT6BQQp7jgA Message-ID: <3EB35A8FF64A7C4B97FF237677CDCBDC034F1C8A2293@aakit001.aakit.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: yes X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: multipart/mixed; boundary="_008_3EB35A8FF64A7C4B97FF237677CDCBDC034F1C8A2293aakit001aak_" MIME-Version: 1.0