Undeliverable email - distrubition group

On exchange 2010 I had an email called "accounts". I deleted the email, and created a distribution group called "accounts" with same email address. When I email that address it comes back us undelivered. Not sure what I did wrong. This is the error message.

Delivery has failed to these recipients or groups:

IMCEAEX-_O=TFI_OU=First+20administrative+20group_cn=Recipients_cn=accounts@tfi.co.za
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: TFISA1.tfi.local

IMCEAEX-_O=TFI_OU=First+20administrative+20group_cn=Recipients_cn=accounts@tfi.co.za
#550 5.1.1 RESOLVER.ADR.ExRecipNotFound; not found ##

Original message headers:

Received: from TFISA1.tfi.local ([fe80::85c9:6350:3ba9:3de7]) by
 TFISA1.tfi.local ([fe80::85c9:6350:3ba9:3de7%16]) with mapi id
 14.01.0438.000; Tue, 29 Apr 2014 15:51:12 +0200
Content-Type: application/ms-tnef; name="winmail.dat"
Content-Transfer-Encoding: binary
From: Christo Engelbrecht <ChristoE@tfi.co.za>
To:
            "IMCEAEX-_O=TFI_OU=First+20administrative+20group_cn=Recipients_cn=accounts@tfi.co.za"
            <IMCEAEX-_O=TFI_OU=First+20administrative+20group_cn=Recipients_cn=accounts@tfi.co.za>
Subject: test
Thread-Topic: test
Thread-Index: Ac9jsgzPs8lf/J/VSfKJf5GIaDGyvg==
Date: Tue, 29 Apr 2014 15:51:12 +0200
Message-ID: <188111840FC3374B808B40A2C3DA1DB0028AD4D1@TFISA1.tfi.local>
Accept-Language: en-ZA, en-US
Content-Language: en-US
X-MS-Has-Attach: yes
X-MS-TNEF-Correlator: <188111840FC3374B808B40A2C3DA1DB0028AD4D1@TFISA1.tfi.local>
MIME-Version: 1.0
X-Originating-IP: [192.168.0.38]

April 29th, 2014 10:04am

Hi,

This issue may occur if the value for the LegacyExchangeDN attribute changed.

To resolve this issue, use one of the following methods:

Method 1: Clear the auto-complete cache file.

Method 2: Create an X500 proxy address for the old LegacyExchangeDN attribute for the user.

For more information, please refer:

http://support.microsoft.com/kb/2807779/en-us

A similar issue discussed here:

http://social.technet.microsoft.com/Forums/en-US/8189aa48-8656-4935-8c57-1a1ffcb9257e/getting-messge-undeliverable-errors-on-email-account-that-is-active?forum=exchange2010

Hope this helps.

Best Regards,

Steve Fan
TechNet Community Support

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April 29th, 2014 11:07pm

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