Run NSLOOKUP on your Exchange server and see where the MX record for that domain points. Follow that trail.
Ed Crowley MCSE+Internet MVP Freelance E-Mail Philosopher Protecting the world from PSTs and Bricked Backups!T -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mike Newell Sent: Tuesday, March 15, 2005 11:53 AM To: Exchange Discussions Subject: Contact causing mail loop. Hello, I recently had to change the primary SMTP address for 400+ contacts do to a company merger. I used admodify to make the change and it worked well but then I tried to change the target address to the new address and when I do I get a loop error when I send . There are no other users or contacts with the same address. The new domain is hosted by another company but looking at the header of the NDR it doesn't reach their server. I have two Exchange servers (in the middle of swinging users to new hardware) and a front end server all running Exchange 2003. I've tried deleting the contacts and recreating them but I still get the same error. Any help is greatly appreciated. Here's the specific errors: >From the NDR: A configuration error in the e-mail system caused the message to bounce between two servers or to be forwarded between two recipients. Contact your administrator. >From the Servers app log: Event Type: Error Event Source: MSExchangeTransport Event Category: Categorizer Event ID: 9026 Date: 3/15/2005 Time: 11:00:23 AM User: N/A Computer: emailserver Description: A forward loop has been detected. Mail could not be delivered to contact because the target address SMTP:[EMAIL PROTECTED] of the contact points to a local domain domainname.com. This is causing 5.4.6 NDRs for the contact. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. Data: 0000: 54 05 04 c0 _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/read/?forum=exchange To subscribe: http://e-newsletters.internet.com/discussionlists.html/ To unsubscribe send a blank email to [EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] To unsubscribe via postal mail, please contact us at: Jupitermedia Corp. Attn: Discussion List Management 475 Park Avenue South New York, NY 10016 Please include the email address which you have been contacted with. _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/read/?forum=exchange To subscribe: http://e-newsletters.internet.com/discussionlists.html/ To unsubscribe send a blank email to [EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] To unsubscribe via postal mail, please contact us at: Jupitermedia Corp. Attn: Discussion List Management 475 Park Avenue South New York, NY 10016 Please include the email address which you have been contacted with.
