We had a couple of contacts get deleted and when the users tried to send to them by typing the e-mail address it would come back with that error. Looks like Outlook was using the cached value. We tried doing the name cache clear but that did not work and the only fix I found in this was have the user close Outlook and delete the OST file. When they started Outlook it rebuilt the OST and the issue was gone.
From: Steve Hart [mailto:sh...@wrightbg.com] Sent: Tuesday, October 27, 2009 6:56 PM To: MS-Exchange Admin Issues Subject: IMCEAEX We've recently migrated a bunch of users from an SBS system on to our Exchange 2007 system. The users had previously existed as contacts in Exchange. We deleted the contacts and created new users. Everything works great except for the expected errors from cached internal Outlook addresses. Here's an example: Delivery has failed to these recipients or distribution lists: Gene Snitker<mailto:imceaex-_o%3dwright%2b20business%2b20graphics_ou%3dwrightbg_cn%3drecipients_cn%3dgenesnit...@wrightbg.com> The recipient's e-mail address was not found in the recipient's e-mail system. Microsoft Exchange will not try to redeliver this message for you. Please check the e-mail address and try resending this message, or provide the following diagnostic text to your system administrator. ________________________________ Sent by Microsoft Exchange Server 2007 When I've had occasional problems like this before, I've added an X500 address. In this case, I added: o=wright+20business+20graphics_ou=wrightbg_cn=recipients_cn=genesnit...@wrightbg.com<mailto:o=wright+20business+20graphics_ou=wrightbg_cn=recipients_cn=genesnit...@wrightbg.com> Email is still bouncing with the same NDR. Do I have the format wrong, or is something else going on? Steve
