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How to stop "RESOLVER.ADR.ExRecipNotFound; not found ##" bouncbacks

Posted on 2013-11-08
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Last Modified: 2013-12-21
The CEO is getting these errors as he has sent emails to several users and included a user no longer in the company (Meaning that email no longer exists) But he still from time to time received emails from exchange (Bounce backs). How can I get it to stop? Its emails that were sent months ago and he is still getting these bounce backs below?

From: Microsoft Outlook <MicrosoftExchange329e71ec88ae4615bbc36ab6ce41109e@Abc.com<mailto:MicrosoftExchange329e71ec88ae4615bbc36ab6ce41109e@Abc.com>>
Date: November 8, 2013 at 2:11:23 PM EST
To: <WMM@Abc.com<mailto:WAM@Abc.com>>
Subject: Undeliverable: FW: NMHC Update: New White Paper Outlining Key Copyright and Music Licensing Principles Available


Delivery has failed to these recipients or groups:

JOHN SMITH<mailto:IMCEAEX-_O%3DTHE%2B20ABC_OU%3DEXCHANGE%2B20ADMINISTRATIVE%2B20GROUP%2B20%2B28FYDIBOHF23SPDLT%2B29_CN%3DRECIPIENTS_CN%3DJSMITH@Abc.com>
The e-mail address you entered couldn't be found. Please check the recipient's e-mail address and try to resend the message. If the problem continues, please contact your helpdesk.


Diagnostic information for administrators:

Generating server: DH8.Abc.com<http://DH8.Abc.com>

IMCEAEX-_O=THE+20ABC_OU=EXCHANGE+20ADMINISTRATIVE+20GROUP+20+28FYDIBOHF23SPDLT+29_CN=RECIPIENTS_CN=JSMITH@Abc.com<mailto:IMCEAEX-_O=THE+20ABC_OU=EXCHANGE+20ADMINISTRATIVE+20GROUP+20+28FYDIBOHF23SPDLT+29_CN=RECIPIENTS_CN=JSMITHJ@Abc.com>
#550 5.1.1 RESOLVER.ADR.ExRecipNotFound; not found ##

Original message headers:

Received: from DH8.Abc.com<http://DH8.Abc.com> ([fe80::8818:8e72:ebe0:ca46%13])  by DH8.Abc.com<http://DH8.Abc.com> ([fe80::8818:8e72:ebe0:ca46%13]) with  Microsoft SMTP Server id 14.01.0355.002; Fri, 8 Nov 2013 14:11:23 -0500
Content-Type: application/ms-tnef; name="winmail.dat"
Content-Transfer-Encoding: binary
From: "WMM" <WMM@Abc.com<mailto:WMM@Abc.com>>
To: SS <ss@Abc.com<mailto:smorris@Abc.com>>, JOHN SMITH
        <IMCEAEX-_O=THE+20ABC_OU=EXCHANGE+20ADMINISTRATIVE+20GROUP+20+28FYDIBOHF23SPDLT+29_CN=RECIPIENTS_CN=JSMITH@Abc.com<mailto:IMCEAEX-_O=THE+20ABCOU=EXCHANGE+20ADMINISTRATIVE+20GROUP+20+28FYDIBOHF23SPDLT+29_CN=RECIPIENTS_CN=JSMITH@Abc.com>>
Subject: FW: NMHC Update: New White Paper Outlining Key Copyright and Music  Licensing Principles Available
Thread-Topic: NMHC Update: New White Paper Outlining Key Copyright and Music  Licensing Principles Available
Thread-Index: AQHO3LZQEm6q9mpxHUihVhzwon9iMQ==
References: <0.0.0.66.1CEDCB5F8516826.273FD@mail78.magnetmail.net<mailto:0.0.0.66.1CEDCB5F8516826.273FD@mail78.magnetmail.net>>
In-Reply-To: <0.0.0.66.1CEDCB5F8516826.273FD@mail78.magnetmail.net<mailto:0.0.0.66.1CEDCB5F8516826.273FD@mail78.magnetmail.net>>
X-MS-Has-Attach:
X-MS-Exchange-Inbox-Rules-Loop: wmm@abc.com<mailto:wmm@abc.com>
X-MS-TNEF-Correlator: 823646ce-2101-4f49-9521-600e43752066
MIME-Version: 1.0
Date: Fri, 8 Nov 2013 14:11:23 -0500
Message-Id: <288009d0b57f418d83076e518d982256@DH8.Abc.com<mailto:288009d0b57f418d83076e518d982256@DH8TYDN1-VS2.Abc.com>>
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Question by:IT_Fanatic
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8 Comments
 
LVL 63

Expert Comment

by:Simon Butler (Sembee)
ID: 39638106
You can't stop them, other than telling users to stop sending to invalid addresses.
There isn't a way to stop Exchange from generating them.

The most common reason for this error is auto complete information being used - so clearing out the entries from there would probably help.

Simon.
0
 

Author Comment

by:IT_Fanatic
ID: 39638500
That's the thing.  The user does not send emails to this user.  These messages are coming from emails that were sent a while back from what he says.  I've deleted the users email from his contacts so he does not select it by mistake
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LVL 63

Expert Comment

by:Simon Butler (Sembee)
ID: 39638832
That can only mean it is a delegate somewhere and needs to be tracked down.

Simon.
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Author Comment

by:IT_Fanatic
ID: 39638877
Any ideas on how to accomplish this?
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LVL 26

Expert Comment

by:Leon Fester
ID: 39640968
User the message tracking tool on Exchange and specify the failed recipients' email address and a date range overlapping the times that the emails were sent so then you should pickup who sent it.

N.B. Don't enter anything under the sender's email address.
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Accepted Solution

by:
IT_Fanatic earned 0 total points
ID: 39678843
He wasnt a delegate but I looked at all the rules in the CEOs mailbox and it forwards that user some emails. So the issue was due to being in a forward rule on OWA.
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Author Closing Comment

by:IT_Fanatic
ID: 39733412
This is what worked for me
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