Hi We have a exchange 2003 and Exchange 2010 lab environment We are able to send emails between the mailboxes existing on exchange 2003 but cannot send email from exchange 2003 to exchange 2010 The given NDR comes up Microsoft Mail Internet Headers Version 2.0 Received: from USENGEM0B.GMCH.AD.GM.COM ([130.175.94.150]) by USENGEM0MB01.GMCH.AD.GM.COM with Microsoft SMTPSVC(6.0.3790.3959); Sun, 17 Jun 2012 11:31:00 -0400 Received: from USPLNEM0.GMCH.AD.GM.COM ([130.175.111.222]) by USENGEM0BH01.COM with Microsoft SMTPSVC(6.0.3790.3959); Sun, 17 Jun 2012 11:31:00 -0400 MIME-Version: 1.0 Date: Sun, 17 Jun 2012 11:30:57 -0400 Content-Type: multipart/report; report-type=delivery-status; boundary="82bbe4f4-a253-416f-973e-a6a2fb04e178" Content-Language: en-US Message-ID: <3aaba555-5245-48e7-8e60-a2226af50d3e@USPLNEM0CH01.GMCH.AD.GM.COM> In-Reply-To: <6C108A2264045F40B4507F4ABA4DEE096A47@USENGEM0MB01.GMCH.AD.GM.COM> References: <6C108A2264045F40B4507F4ABA4DEE096A47@USENGEM0MB01.GMCH.AD.GM.COM> Thread-Topic: trdyddddd Thread-Index: Ac1KRFESEjnm6CngRIClU7tCrkxWlwCWeAfv Subject: Undeliverable: trdyddddd Return-Path: <> X-OriginalArrivalTime: 17 Jun 2012 15:31:00.0530 (UTC) FILETIME=[32D9F120:01CD4C9E] --82bbe4f4-a253-416f-973e-a6a2fb04e178 Content-Type: multipart/alternative; differences=Content-Type; boundary="a35cc920-d274-4a52-963f-e1845db839ab" --a35cc920-d274-4a52-963f-e1845db839ab Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable --a35cc920-d274-4a52-963f-e1845db839ab Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable --a35cc920-d274-4a52-963f-e1845db839ab-- --82bbe4f4-a253-416f-973e-a6a2fb04e178 Content-Type: message/delivery-status --82bbe4f4-a253-416f-973e-a6a2fb04e178 Content-Type: message/rfc822 Received: from USENGEM0BH01.COM (130.175.94.150) by gmch.ad.gm.com (130.175.111.222) with Microsoft SMTP Server id 14.2.247.3; Fri, 15 Jun 2012 11:30:54 -0400 Received: from USENGEM0MB01.COM ([130.175.94.152]) by USENGEM0BH01.GMCH.AD.GM.COM with Microsoft SMTPSVC(6.0.3790.3959); Fri, 15 Jun 2012 11:30:54 -0400 Subject: trdyddddd Date: Thu, 14 Jun 2012 11:42:34 -0400 Message-ID: <6C108A2264045F40B4507F4ABA4DEE096A47@USENGEM0MB01.GMCH.AD.GM.COM> MIME-Version: 1.0 Content-Type: application/ms-tnef; name="winmail.dat" Content-Transfer-Encoding: base64 X-MS-Has-Attach: X-MS-TNEF-Correlator: <6C108A2264045F40B4507F4ABA4DEE096A47@USENGEM0MB01.GMCH.AD.GM.COM> Thread-Topic: trdyddddd Content-Class: urn:content-classes:message Thread-Index: Ac1KRFESEjnm6CngRIClU7tCrkxWlw== X-MimeOLE: Produced By Microsoft Exchange V6.5 X-OriginalArrivalTime: 15 Jun 2012 15:30:54.0403 (UTC) FILETIME=[DA5F8930:01CD4B0B] --82bbe4f4-a253-416f-973e-a6a2fb04e178--

What could the possible reason telnet from exchange 2003 to 2010 is not working

On Thu, 21 Jun 2012 12:49:11 +0000, Exchangeskumar wrote: >We have a exchange 2003 and Exchange 2010 lab environment > >We are able to send emails between the mailboxes existing on exchange 2003 > >but cannot send email from exchange 2003 to exchange 2010 > >The given NDR comes up That's not the whole NDR, that's the message that wasn't delivered. In the NDR you should see the resaon why the message was rejected. Can you send e-mail from Exchange 2010 to Exchange 2003? Do you have a bi-directional Routing Group Connector between the Exchange 2003 Routing Group and the Exchange 2010 HT server(s)? --- Rich Matheisen MCSE+I, Exchange MVP --- Rich Matheisen MCSE+I, Exchange MVP

I agree with Rich. This seems not the whole NDR information, the whole NDR information will include the generation server and reason why it rejected. When you telnet from Exchange 2003 to Exchange 2010, what error did you get? If your environment is Exchange 2003 co-existence with Exchange 2010, please follow Rich's suggestion to check for the routing group connector. If your Exchange 2003 and Exchange 2010 are in the different forests, you can create one send connector (with smart host is Exchange 2010 Hub Server) to have a try. Thanks, EvanEvan Liu TechNet Community Support

Microsoft Mail Internet Headers Version 2.0 Received: from USENGEM0BH01.GMCH.AD.GM.COM ([130.175.94.150]) by USENGEM0MB01.GMCH.AD.GM.COM with Microsoft SMTPSVC(6.0.3790.3959); Sun, 17 Jun 2012 11:31:00 -0400 Received: from USPLNEM0CH01.GMCH.AD.GM.COM ([130.175.111.222]) by USENGEM0BH01.GMCH.AD.GM.COM with Microsoft SMTPSVC(6.0.3790.3959); Sun, 17 Jun 2012 11:31:00 -0400 MIME-Version: 1.0 From: Microsoft Outlook <MicrosoftExchange329e71ec88ae4615bbc36ab6ce41109e@onstar.lnotes.eit.eds.com> To: <Sonali.Kumar@onstar.lnotes.eit.eds.com> Date: Sun, 17 Jun 2012 11:30:57 -0400 Content-Type: multipart/report; report-type=delivery-status; boundary="82bbe4f4-a253-416f-973e-a6a2fb04e178" Content-Language: en-US Message-ID: <3aaba555-5245-48e7-8e60-a2226af50d3e@USPLNEM0CH01.GMCH.AD.GM.COM> In-Reply-To: <6C108A2264045F40B4507F4ABA4DEE096A47@USENGEM0MB01.GMCH.AD.GM.COM> References: <6C108A2264045F40B4507F4ABA4DEE096A47@USENGEM0MB01.GMCH.AD.GM.COM> Thread-Topic: trdyddddd Thread-Index: Ac1KRFESEjnm6CngRIClU7tCrkxWlwCWeAfv Subject: Undeliverable: trdyddddd Return-Path: <> X-OriginalArrivalTime: 17 Jun 2012 15:31:00.0530 (UTC) FILETIME=[32D9F120:01CD4C9E] --82bbe4f4-a253-416f-973e-a6a2fb04e178 Content-Type: multipart/alternative; differences=Content-Type; boundary="a35cc920-d274-4a52-963f-e1845db839ab" --a35cc920-d274-4a52-963f-e1845db839ab Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable --a35cc920-d274-4a52-963f-e1845db839ab Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable --a35cc920-d274-4a52-963f-e1845db839ab-- --82bbe4f4-a253-416f-973e-a6a2fb04e178 Content-Type: message/delivery-status --82bbe4f4-a253-416f-973e-a6a2fb04e178 Content-Type: message/rfc822 Received: from USENGEM0BH01.GMCH.AD.GM.COM (130.175.94.150) by gmch.ad.gm.com (130.175.111.222) with Microsoft SMTP Server id 14.2.247.3; Fri, 15 Jun 2012 11:30:54 -0400 Received: from USENGEM0MB01.GMCH.AD.GM.COM ([130.175.94.152]) by USENGEM0BH01.GMCH.AD.GM.COM with Microsoft SMTPSVC(6.0.3790.3959); Fri, 15 Jun 2012 11:30:54 -0400 Return-Receipt-To: Sonali Kumar <Sonali.Kumar@onstar.lnotes.eit.eds.com> Subject: trdyddddd Date: Thu, 14 Jun 2012 11:42:34 -0400 Message-ID: <6C108A2264045F40B4507F4ABA4DEE096A47@USENGEM0MB01.GMCH.AD.GM.COM> MIME-Version: 1.0 Content-Type: application/ms-tnef; name="winmail.dat" Content-Transfer-Encoding: base64 X-MS-Has-Attach: X-MS-TNEF-Correlator: <6C108A2264045F40B4507F4ABA4DEE096A47@USENGEM0MB01.GMCH.AD.GM.COM> Thread-Topic: trdyddddd Content-Class: urn:content-classes:message Thread-Index: Ac1KRFESEjnm6CngRIClU7tCrkxWlw== X-MimeOLE: Produced By Microsoft Exchange V6.5 From: Sonali Kumar <Sonali.Kumar@onstar.lnotes.eit.eds.com> To: e10 testuser02 <e10.testuser02@onstar.lnotes.eit.eds.com> Return-Path: Sonali.Kumar@onstar.lnotes.eit.eds.com X-OriginalArrivalTime: 15 Jun 2012 15:30:54.0403 (UTC) FILETIME=[DA5F8930:01CD4B0B] --82bbe4f4-a253-416f-973e-a6a2fb04e178-- NDR

Could you follow my questions ( in last post) to explain your problem in detail? Thanks, EvanEvan Liu TechNet Community Support