Re: Exchange 2003/AD issue

On Nov 29, 6:05 pm, trix...@xxxxxxxxx wrote:
(Crossposted from the MS Exchange group, since there were no
constructive ideas there)

We are having a problem when a user has left the organisation, and
their account is deleted. For quite some time afterwards, individuals
who send mail to a distribution list which formerly contained the
user, or who try to send a meeting request to a mailbox to which the
user was a delegate will get the following form of NDR:

There was a SMTP communication problem with the recipient's email
server. Please contact your system administrator.
<servername #5.5.0 smtp;550 <IMCEAex-_O=ourdomainOU=FIRST
+20ADMINISTRATIVE+20GROUP_CN=RECIPIENTS_CN=HARRISON
+5...@xxxxxxxxxxxxx>: Recipient address rejected: User unknown>

This is the kind of error received when an SMTP address is missing,
and there is an attempt to deliver using the X500 (I think) pointer.

For the life of me, I cannot find where these entries are coming from.
I've dumped the entire Domain Users container in the AD to see if
there are any old entries in something like publicDelegates and so on,
and can't find anything with the correct username. Since the user
account no longer exists, there's nowhere for the LegacyDN to be
lurking.

If someone could explain two things, I'd be grateful:

a) where the entries might be hiding so I can delete them
b) how to stop this problem recurring in the future. Regarding this,
we have some rather hacked-together scripts to remove users from the
domain (which I don't control), so if there's something about the
account deletion process we might be omitting, it'd be good to know
what it is.

Thanks.

One thing to check - when you delete the user, is the mailbox beging
deleted as well?
.

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