Delivery has failed to these recipients or distribution lists:
Hi. I have a mailbox A in which there are couple of users who have full permission to it. Recently, one of these users (user B ) left the organization. Hence, we had her a/c disabled . Now, whenever a user sends an appointment or email to mailbox A , the user would receive a delivery failed notification; pointing to user B whose mailbox no longer exist. The header for the notification is shown below: IMCEAEX-_O=XXX+20XXX+20XXX_OU=First+20Administrative+20Group_cn=Recipients_cn=XXX+2EXXX+2EXXX@XXX.org.sg #550 5.1.1 RESOLVER.ADR.ExRecipNotFound; not found ## If I restore user B, then this error goes away. But that should not be the way right? Please advise if there's anything I can do to make this go away. Btw, my organization is running on Exchange 2007 SP1 Version 8.1 (build 240.6) Regards, spurs_adr
May 11th, 2010 11:21am

Hello, I woul say that before disabling user's B account you might want to remove all rights and permissions that account (user B) had on mailbox A. For example , if you have set up user B as a delegate for user A mailbox retire it. Also if you gave in ADUC permissions as Full Mailbox access or send as and receive as remove the entries for user B. Hope it helps, Mihai
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May 11th, 2010 5:13pm

Yes Mihaiss is saying right. Please check this.
May 11th, 2010 6:05pm

Hi guys. Thanks for responding :-) So, am I right to say that if I want to solve this problem, I should do the following: 1. Re-enable user B mailbox 2. Remove all of user B permission on mailbox A 3. Then, disable user B mailbox Correct me if I'm wrong. Thanks.
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May 12th, 2010 1:17am

it is not going to work like this.because now user id will be changed. So better is, assign same permission to another user and then remove old users attributes from security tab. Thanks
May 12th, 2010 9:03pm

You need to look at delegation on mailbox A and remove any references to user B there.
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May 12th, 2010 9:20pm

Hi, I have faced similar problem in past. You should check the delgates and rules configured on mailbox A using outlook profile. As the user B is no longer existing in your organization, you might not see any rule pointing to user B. Instead, of user B, you might see some strange GUIDs in outlook rules. In case the above does not work, sometimes when the user object is deleted from active directory and if a rule points to that user object, outlook does not recognize any rule pointing to that object and you do not find any rules in outlook. In that case, you can use a utility called as MFCMAPI (its a MS utility) and open the rules table for user A, you will find some stale rule entries there. Delete those entries and it should solve your problem. You can find the details to run MFCMAPI at the following links: http://exchangeshare.wordpress.com/2008/04/10/delete-corrupted-hidden-or-stale-rules-from-mailbox-with-mfcmapi/ http://support.microsoft.com/default.aspx/kb/924297?p=1 I hope this helps
May 13th, 2010 3:46am

Hi Wintel, Any update for your issue? Per your description, it seems that userB not just have the full access permission for the mailboxA, it would have other configuration about userB linke MissKos&Rajesh referred. So please follow the suggestion. Regards! gavin
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May 13th, 2010 10:56am

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