How to stop this,,I am getting response from people who is no longer with my working with my Company and was never a member of the people cft mail goup

Here is the error message am getting from my exchange server,

From: Microsoft Exchange
Sent: Thursday, April 22, 2010 9:47 AM
To: Doris Kibassa
Subject: Undeliverable: People cft

Delivery has failed to these recipients or distribution lists:

Herbert Louis
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

Diagnostic information for administrators:

Generating server:
#550 5.1.1 RESOLVER.ADR.ExRecipNotFound; not found ##

Original message headers:

Received: from ([fe80::48ed:c21f:1a99:6c9f]) by ([::1]) with mapi; Thu, 22 Apr 2010 09:46:45 +0300
Content-Type: application/ms-tnef; name="winmail.dat"
Content-Transfer-Encoding: binary
From: Doris Kibassa <>
To: Herbert Louis
Date: Thu, 22 Apr 2010 09:46:45 +0300
Subject: People cft
Thread-Topic: People cft
Thread-Index: AcrcbUkj8RNtJO42SpKmUY7a/vp6LgFekfxA
Message-ID: <>
Accept-Language: en-US
Content-Language: en-US
X-Auto-Response-Suppress: DR, OOF, AutoReply
X-MS-TNEF-Correlator: <>
acceptlanguage: en-US
MIME-Version: 1.0
X-ExProperty: MjE6VlRfQlNUUjpEb3JpcyBLaWJhc3Nh
X-ExProperty: MTM6VlRfVUk0OjA-
X-ExProperty: MTI6VlRfVUk0OjI-
X-ExProperty: NzpWVF9VSTQ6MQ--
X-ExProperty: NjpWVF9VSTQ6MA--
X-ExProperty: NTpWVF9VSTQ6MQ--
X-ExProperty: MjpWVF9CU1RSOkRvcmlzLktpYmFzc2FAdHouemFpbi5jb20-
X-ExProperty: MTpWVF9VSTQ6MQ--
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Hi Seni,

The first thing that comes to my mind is it looks like you have an infected workstation on your network that is using your Exchange server to send out bogus emails. However, you said you're getting responses from people no longer working  at your company. By any chance were these former employees a delegate of another employees mailbox? In Exchange 2003 and to the best of my knowledge Exchange 2007 before you delete a user in Exchange you need to make sure you remove their delegate status if they have any. Otherwise, everytime the user of the mailbox the deleted user was a delegate of gets an email a delivery failure message will be created as well. To fix the problem you have to recreate the deleted user exactly as they were, readd their delegate status, and then remove it. You can then safely remove their account from Exchange.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Hi Seni,

As oztrodamus chances that your workstation is affected.
You see anything on your sent Items ?

If not close your outlook and working form OWA for some time and see if you still get the emails

SeniAuthor Commented:
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Email Protocols

From novice to tech pro — start learning today.