Ghost Mailbox Causing Bounces (duplicate messages) - Exchange 2007

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Peter Venkman

Hi,

I just ran into a rather strange issue. When sending to a particular

user, some people are getting bounces saying that two users in our org

have the same email address. When I do a search in the EMC, I find

two user objects with same email address. One is a typical "User

Mailbox" object in this persons regional domain. In other words, it's

the valid account. The other is an object type called "Mail User" in

a completely different domain in the same forest. It's the same

domain our Exchange servers are on.

When I try to delete the object or even view properties, it tells me

it can't find the object on the dc it's looking at. A random search

through the whole directory on different DC's will sometimes pull up

that user object as well, but it can't be opened. It's not consistent

either. Sometimes some DC's will show that object and sometimes they

won't. Sometimes different DC's will show it...

Any help or suggestions are appreciated.

PVD
 
J

John Oliver, Jr. [MVP]

Has this AD ever been recovered from a disaster? I would run DCDIAG and

NETDIAG to see what is happening in your AD first. Event log on the

Exchange Server and DC should also give you some clue as to what may be

happening.

John Oliver, Jr

MCSE, MCT, CCNA

Exchange MVP 2010

Microsoft Certified Partner

"Peter Venkman" <pauldi@iona.com> wrote in message

news:3515e1ff-7261-4765-9e33-28f39eaf5eb9@y11g2000yqm.googlegroups.com...
> Hi,

> I just ran into a rather strange issue. When sending to a particular
> user, some people are getting bounces saying that two users in our org
> have the same email address. When I do a search in the EMC, I find
> two user objects with same email address. One is a typical "User
> Mailbox" object in this persons regional domain. In other words, it's
> the valid account. The other is an object type called "Mail User" in
> a completely different domain in the same forest. It's the same
> domain our Exchange servers are on.

> When I try to delete the object or even view properties, it tells me
> it can't find the object on the dc it's looking at. A random search
> through the whole directory on different DC's will sometimes pull up
> that user object as well, but it can't be opened. It's not consistent
> either. Sometimes some DC's will show that object and sometimes they
> won't. Sometimes different DC's will show it...

> Any help or suggestions are appreciated.

> PVD
 
P

Peter Venkman

Re: Ghost Mailbox Causing Bounces (duplicate messages) - Exchange2007

It has never been recovered from a disaster.

Netdiag all fine

dcdiag squawks about one of our 39 domain controllers not replicating

in the past 12 hours. Nothing really out of the ordinary with our

satellite offices. I've never seen this e-mail thing before.

Everything else is fine.

Thanks.

On Jul 1, 4:12 pm, "John Oliver, Jr. [MVP]" <jcolive...@hotmail.com
wrote:
> Has this AD ever been recovered from a disaster?  I would run DCDIAG and
> NETDIAG to see what is happening in your AD first.   Event log on the
> Exchange Server and DC should also give you some clue as to what may be
> happening.

> > John Oliver, Jr
> MCSE, MCT, CCNA
> Exchange MVP 2010
> Microsoft Certified Partner

> "Peter Venkman" <pau...@iona.com> wrote in message

> news:3515e1ff-7261-4765-9e33-28f39eaf5eb9@y11g2000yqm.googlegroups.com...
>
> > Hi,

>
> > I just ran into a rather strange issue.  When sending to a particular
> > user, some people are getting bounces saying that two users in our org
> > have the same email address.  When I do a search in the EMC, I find
> > two user objects with same email address.  One is a typical "User
> > Mailbox" object in this persons regional domain.  In other words, it's
> > the valid account.  The other is an object type called "Mail User" in
> > a completely different domain in the same forest.  It's the same
> > domain our Exchange servers are on.

>
> > When I try to delete the object or even view properties, it tells me
> > it can't find the object on the dc it's looking at.  A random search
> > through the whole directory on different DC's will sometimes pull up
> > that user object as well, but it can't be opened.  It's not consistent
> > either.  Sometimes some DC's will show that object and sometimes they
> > won't.  Sometimes different DC's will show it...

>
> > Any help or suggestions are appreciated.

>
> > PVD
 
J

John Oliver, Jr. [MVP]

That is very strange, I am thinking this is more an AD issue than Exchange.

Have you run ExBPA lately to see if it finds anything?

John Oliver, Jr

MCSE, MCT, CCNA

Exchange MVP 2010

Microsoft Certified Partner

"Peter Venkman" <pauldi@iona.com> wrote in message

news:24a45cb2-6434-433f-9350-e857c8126baf@w12g2000yqj.googlegroups.com...
> It has never been recovered from a disaster.

> Netdiag all fine

> dcdiag squawks about one of our 39 domain controllers not replicating
> in the past 12 hours. Nothing really out of the ordinary with our
> satellite offices. I've never seen this e-mail thing before.
> Everything else is fine.

> Thanks.

> On Jul 1, 4:12 pm, "John Oliver, Jr. [MVP]" <jcolive...@hotmail.com
> wrote:
> > Has this AD ever been recovered from a disaster? I would run DCDIAG and
> > NETDIAG to see what is happening in your AD first. Event log on the
> > Exchange Server and DC should also give you some clue as to what may be
> > happening.
>

>> > > John Oliver, Jr
> > MCSE, MCT, CCNA
> > Exchange MVP 2010
> > Microsoft Certified Partner
>

>> "Peter Venkman" <pau...@iona.com> wrote in message
>

>> news:3515e1ff-7261-4765-9e33-28f39eaf5eb9@y11g2000yqm.googlegroups.com...
> >
> > > Hi,

> >
> > > I just ran into a rather strange issue. When sending to a particular
> > > user, some people are getting bounces saying that two users in our org
> > > have the same email address. When I do a search in the EMC, I find
> > > two user objects with same email address. One is a typical "User
> > > Mailbox" object in this persons regional domain. In other words, it's
> > > the valid account. The other is an object type called "Mail User" in
> > > a completely different domain in the same forest. It's the same
> > > domain our Exchange servers are on.

> >
> > > When I try to delete the object or even view properties, it tells me
> > > it can't find the object on the dc it's looking at. A random search
> > > through the whole directory on different DC's will sometimes pull up
> > > that user object as well, but it can't be opened. It's not consistent
> > > either. Sometimes some DC's will show that object and sometimes they
> > > won't. Sometimes different DC's will show it...

> >
> > > Any help or suggestions are appreciated.

> >
> > > PVD

>
 
R

Rich Matheisen [MVP]

On Fri, 2 Jul 2010 12:29:23 -0400, "John Oliver, Jr. [MVP]"

<jcoliverjr@hotmail.com> wrote:


> That is very strange, I am thinking this is more an AD issue than Exchange.


I'd agree with this. Either he doesn't have permission to modify the

object in another domain or there's a problem with GC replication.


> Have you run ExBPA lately to see if it finds anything?


I'd run the check for permissions, not something that checks for

problems within Exchange.

-
Rich Matheisen

 
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