Look at your routing tables on each side. That should give you some pretty good clues.
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 Josh Bennett(VF) Sent: Thursday, July 22, 2004 7:47 AM To: Exchange Discussions Subject: Mail loop? Hello all, I am in need of assistance as I am at wits end (not that that took long). Here is the background info: 3-Ex5.5 servers in a NT4 Domain (remote Canadian subsidy) migrated to an AD domain within an existing Forest (AD mixed-mode, yeah I know not my idea) with an existing E2K ORG. Accounts where migrated using ADMT. Mail was migrating using EXmerge from 3 Ex5.5 to 1 central E2K server in its own site within ORG. All 3 Ex5.5 servers are in their own sites within same mixed-mode ORG. Old Ex5.5 accounts where stripped of SMTP addresses and hidden from the GAL. Apparently, there where contacts created for external POP3 users that generate NDR's when email sent from one site to the other. If the email is sent from within the site that the contact is homed the all works well. Here is the NDR I am receiving: 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.The MTS-ID of the original message is:c=US;a= ;p=PQ Corporation;l=PQMAIL2-040722120612Z-294864 MSEXCH:MSExchangeMTA:PQCORP:PQMAIL2 Can't figure out what exactly is causing all of this. I used the Message Tracking Center to determine where the mail is getting looped and apparently the email is leaving my E2K BE over X.400 to my Ex5.5 IMC and then being sent immediately back to the E2K BE server. Please help. Josh Bennett Email & Network Administrator PQ Corporation Phone: 610-651-4209 Fax: 610-651-4393 www.pqcorp.com _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&lang =english To unsubscribe send a blank email to %%email.unsub%% 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/cgi-bin/lyris.pl?enter=exchange&text_mode=&lang=english 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.
