Check your DNS entry for the two offices - it may be that you have either multiple A records, or a secondary MX record for the other office that points to the server that sends to that office. This misconfiguration would match the behavior you describe.
And BTW - the "expiration" timeout only refers to "the time a message will sit in a queue for a host that you can't reach before it gives up". If the system can connect to the host it thinks it needs to connect to, and get an error, it will always NDR immediately, despite the settings. In this case, it thinks it needs to contact itself. Or, another possibility is that there are so many hops in the way that these messages are hitting their default hop count limit, which I believe is 20. SMTP detects loops by counting Received: headers, that may be what's happening here. See Q313529 for details on this. And see Q284204 for details on how to read NDR codes to tell what is actually going on. David -----Original Message----- From: Morrison, Gordon [mailto:[EMAIL PROTECTED]] Sent: Friday, February 22, 2002 2:00 PM To: Exchange Discussions Subject: RE: Tweaking RGCs That's what I thought as well. However, what I am seeing is that if I have a single RGC pair between two offices, and the connectivity between those two offices drops: Any user who sends a message that needs that RGC will get an NDR within a couple of minutes saying that a message loop was detected. Since there is no other path for the message to take, it seems unlikely that it can be a loop, and since it comes back within a couple of minutes, it seems as though it is not using those SMTP settings. -----Original Message----- From: David Lemson [mailto:[EMAIL PROTECTED]] Sent: Friday, February 22, 2002 1:53 PM To: Exchange Discussions Subject: RE: Tweaking RGCs The Delivery Report timeouts are set on the SMTP Virtual Server that would generate it. It doesn't matter what kind of connector is used. -----Original Message----- From: Morrison, Gordon [mailto:[EMAIL PROTECTED]] Sent: Thursday, February 21, 2002 7:43 AM To: Exchange Discussions Subject: Tweaking RGCs Is there any way to tweak the amount of time (or number of retries)a Routing Group Connector is willing to go through before giving up on a message and generating an NDR? The general SMTP settings do not seem to apply. /Gordon ___________________NOTICE____________________________ This electronic mail transmission contains confidential information intended only for the person(s) named. Any use, distribution, copying or disclosure by any other person is strictly prohibited. If you received this transmission in error, please notify the sender by reply e-mail and then destroy the message. Opinions, conclusions, and other information in this message that do not relate to the official business of Bain & Company shall be understood to be neither given nor endorsed by the Company. When addressed to Bain clients, any information contained in this e-mail is subject to the terms and conditions in the governing client contract. _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] ___________________NOTICE____________________________ This electronic mail transmission contains confidential information intended only for the person(s) named. Any use, distribution, copying or disclosure by any other person is strictly prohibited. If you received this transmission in error, please notify the sender by reply e-mail and then destroy the message. Opinions, conclusions, and other information in this message that do not relate to the official business of Bain & Company shall be understood to be neither given nor endorsed by the Company. When addressed to Bain clients, any information contained in this e-mail is subject to the terms and conditions in the governing client contract. _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED]
