HI Julio, This appeared to me the bulls-eye on the problem. I was following Q316886 to migrate, and when I got to the part 'Install ADC and Configure a Two-Way ADC CA', I played the Exch know-all and installed a one-way CA (Exch to Windows), since I didn't want ADC to mess up my existing (and working) Exch 5.5 configuration. Bad bad bad me.... I have now switched it to a 2-way CA. I also chose Replicate Now, but the messages still bounce... Damn, I'm starting to think exchange has given up trying and is just sending back an NDR whenever I send a mail, purely out of laziness... -----Original Message----- From: Julio Danoviz [mailto:jedanoviz@xxxxxxxxxxxxxxxx] Sent: 30 August 2002 3:41 PM To: [ExchangeList] Subject: [exchangelist] RE: Bouncing back and forth.... http://www.MSExchange.org/ Andrea, the user CA configured in ADC is set as two way? Normally during migration the CA is configured one-way from 5.5 to 2000, this updates 5.5 info into AD. If you are going to coexist for a while you will also need to update AD changes concerning Exchange info into the Directory Service of 5.5 -----Original Message----- From: Andrea Coppini [mailto:AndreaCoppini@xxxxxxxx] Sent: Viernes, 30 de Agosto de 2002 08:17 a.m. To: [ExchangeList] Subject: [exchangelist] RE: Bouncing back and forth.... http://www.MSExchange.org/ Where? I used ADC to 'link' the 5.5 mailboxes to the already migrated users on 2k domain, then installed exchange 2k on the 2k domain. Mailboxes moved across using the 'move mailbox' menu item. No errors reported. Regards Andy -----Original Message----- From: Shevill, Mark M SITI-ITDSEC4 [mailto:Mark.Shevill@xxxxxxxxx] Sent: 30 August 2002 11:59 AM To: [ExchangeList] Subject: [exchangelist] RE: Bouncing back and forth.... http://www.MSExchange.org/ You have duplicate SMTP addresses. Mark Shevill IMG Messaging Deputy Team Leader Shell Information Technology International Limited Rowlandsway, Wythenshawe, Manchester M22 5SB, United Kingdom Tel: +44 161 935 7152 Email: Mark.M.Shevill@xxxxxxxxxxxx Internet: http://www.shell.com -----Original Message----- From: Andrea Coppini [mailto:AndreaCoppini@xxxxxxxx] Sent: 30 August 2002 10:44 To: [ExchangeList] Subject: [exchangelist] Bouncing back and forth.... http://www.MSExchange.org/ I always seem to find a solution the minute I post a problem I have in this forum, so here is my next problem.... Bouncing messages between 5.5 and 2K within the same site. My mailbox is on the 2k server. When I try to send an e-mail to a mailbox on the 5.5 server, I get the following error: --------------------- Your message did not reach some or all of the intended recipients. Subject: Test Subject Sent: 30/08/2002 10:55 AM The following recipient(s) could not be reached: Test 5.5 User on 30/08/2002 10:55 AM 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. <srv-mail.domain.com #5.4.6> --------------------- Message tracking shows the following: --------------------- 30/08/2002 11:21 AM Tracked message history on server SRV-MAIL 30/08/2002 11:21 AM SMTP Store Driver: Message Submitted from Store 30/08/2002 11:21 AM SMTP: Message Submitted to Advanced Queuing 30/08/2002 11:21 AM SMTP: Started Message Submission to Advanced Queue 30/08/2002 11:21 AM SMTP: Message Submitted to Categorizer 30/08/2002 11:21 AM SMTP: Non-Delivered Report (NDR) Generated --------------------- Any ideas? Regards Andrea Coppini +356 79 ANDREA (263732) andreacoppini@xxxxxxxx EMPOWER PEOPLE - THE WORLD IN YOUR HAND iWG (iWORLD GROUP) is a global e-mobile company creating, building and growing new businesses. iWG founders are pioneers in creating multi-billion dollar mobile and Internet businesses in Europe, Asia and the US. The Global Partners include the shareholders Bank of America, Deutsche Bank, Hikari Tsushin, McCaw, PaineWebber/UBS, The Dolphins' Trust, Perikles Trust and the iAA Advisory Network. www.iWG.info www.countryprofiler.com/iWG Privileged/Confidential Information may be contained in this message. If you are not the addressee indicated in this message (or responsible for delivery of the message to such person), you may not copy or deliver this message to anyone. 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