Have you run Show-RoutingGroupConnector form Powershell? What does it show?
John W. Cook System Administrator Partnership For Strong Families 315 SE 2nd Ave Gainesville, Fl 32601 Office (352) 393-2741 x320 Cell (352) 215-6944 Fax (352) 393-2746 MCSE, MCTS, MCP+I,CompTIA A+, N+ From: Rimmel, Carl [mailto:[EMAIL PROTECTED] Sent: Monday, February 25, 2008 2:06 PM To: MS-Exchange Admin Issues Subject: Cannot send from Exchange 2007 to Exchange 2003 We are transitioning from Exchange 2003 to Exchange 2007. We have installed a CAS, HUB Transport and Mailbox server (with HUB Transport role also installed). When the first HUB server was installed, it automatically created the necessary routing group connectors to allow email flow between 2003 and 2007 and it worked fine. We recently deleted these connectors and recreated them as we have multiple routing groups which require new routing group connectors to efficiently route mail. Ever since creating the new connectors, we are only able to receive email from 2003 to 2007 but are unable to send from 2007 to 2003. The Queue Viewer indicates the following: 451 5.7.3 Cannot achieve Exchange Server authentication I have checked to make sure "Integrated Windows Authentication" is checked on the 2003 SMTP virtual servers and they are all checked. Also, all of the 2003 servers are correctly listed as members of the ExchangeLegacyInterop" group. This is happening on every connector we created. Any ideas would be great. Thanks, Carl Please consider the environment before printing this e-mail. This message and any attachments contain information, which may be confidential or privileged. If you are not the intended recipient, please refrain from any disclosure, copying, distribution or use of this information. Please be aware that such actions are prohibited. If you have received this transmission in error, kindly notify us by e-mail to [EMAIL PROTECTED] We appreciate your cooperation. ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ ~ http://www.sunbeltsoftware.com/Ninja ~
