Rejected Email

additional information:

1. sending from other office 365 domain(other tenant) to coretechsys.co.kr is same error

2. sending from other mail system to coretechsys.co.kr is work fine

Here is an example of one of the errors:

Delivery has failed to these recipients or groups:

dychoi072@coretechsys.co.kr (dychoi072@coretechsys.co.kr)

The server has tried to deliver this message, without success, and has stopped trying. Please try sending this message again. If the problem continues, contact your helpdesk. 

Diagnostic information for administrators:

Generating server: HKXPR06MB151.apcprd06.prod.outlook.com
Receiving server: apac01-internal.map.protection.outlook.com (10.174.64.25)

dychoi072@coretechsys.co.kr
1/15/2014 9:37:11 AM - Remote Server at apac01-internal.map.protection.outlook.com (10.174.64.25) returned '550 4.4.7 QUEUE.Expired; message expired'
1/15/2014 9:32:15 AM - Remote Server at apac01-internal.map.protection.outlook.com (10.174.64.25) returned '450 4.7.0 Proxy session setup failed on Frontend with '441 4.4.1 Error encountered while communicating with primary target IP address: "Failed to connect. Winsock error code: 10060, Win32 error code: 10060." Attempted failover to alternate host, but that did not succeed. Either there are no alternate hosts, or delivery failed to all alternate hosts. The last endpoint attempted was 49.254.82.187:25''

Original message headers:

Received: from HKXPR06MB149.apcprd06.prod.outlook.com (10.242.122.148) by

 HKXPR06MB151.apcprd06.prod.outlook.com (10.242.122.155) with Microsoft SMTP

 Server (TLS) id 15.0.847.13; Mon, 13 Jan 2014 09:33:56 +0000

Received: from HKXPR06MB149.apcprd06.prod.outlook.com ([169.254.1.116]) by

 HKXPR06MB149.apcprd06.prod.outlook.com ([169.254.1.116]) with mapi id

 15.00.0847.008; Mon, 13 Jan 2014 09:33:56 +0000

From: =?ks_c_5601-1987?B?udq6tLCp?= <byung@tanhay.com>

To: "dychoi072@coretechsys.co.kr" <dychoi072@coretechsys.co.kr>

Subject: =?ks_c_5601-1987?B?VFBDudq6tLCpwNS0z7TZLg==?=

Thread-Topic: =?ks_c_5601-1987?B?VFBDudq6tLCpwNS0z7TZLg==?=

Thread-Index: AQHPEEKTjeiCGFY01kKUMR453IAzeQ==

Date: Mon, 13 Jan 2014 09:33:55 +0000

Message-ID: <e94e06511e514a878d824f61d97105bb@HKXPR06MB149.apcprd06.prod.outlook.com>

Accept-Language: ko-KR, en-US

Content-Language: ko-KR

X-MS-Has-Attach:

X-MS-TNEF-Correlator:

x-originating-ip: [221.157.205.250]

x-forefront-prvs: 00909363D5

x-forefront-antispam-report: SFV:NSPM;SFS:(10009001)(199002)(189002)(74706001)(77982001)(4396001)(47976001)(85806002)(224303002)(49866001)(47736001)(81816001)(74876001)(80976001)(83072002)(83322001)(90146001)(56816005)(93136001)(76786001)(76576001)(92566001)(558084003)(50986001)(76176001)(81542001)(66066001)(77096001)(85306002)(33646001)(53806001)(79102001)(54316002)(51856001)(87936001)(2656002)(46102001)(74366001)(85182001)(65816001)(80022001)(81342001)(59766001)(85852003)(74662001)(56776001)(76796001)(69226001)(47446002)(16236675002)(81686001)(74502001)(54356001)(87266001)(31966008)(74316001)(76482001)(63696002)(24736002);DIR:OUT;SFP:1101;SCL:1;SRVR:HKXPR06MB151;H:HKXPR06MB149.apcprd06.prod.outlook.com;CLIP:221.157.205.250;FPR:;RD:InfoNoRecords;A:1;MX:1;LANG:ko;

Content-Type: multipart/alternative;

        boundary="_000_e94e06511e514a878d824f61d97105bbHKXPR06MB149apcprd06pro_"

MIME-Version: 1.0