Disabled AD accounts receive email (exchange)

Giganews Newsgroups
Subject: Disabled AD accounts receive email (exchange)
Posted by:  CampMaster (ng@spamex.com)
Date: Wed, 28 Feb 2007

I am having a problem that just started. I am running a Windows 2003 Server
SP1 with Exchange 2003 SP2.

I have had a few accounts that are disabled in AD and if someone on the
outside were to send an email to one of these disabled users, they would get
a NDR. That was fine for this small organization and had been working that
way for over 1 year.

A few days ago, any outside emails that get send to any of the disabled
accounts, now go to that users exchange inbox and not get rejected as it had
been doing for the past year. If I try to log into that disabled account, I
can't until I enable it (as it should be). It seems that AD is not sending
the "disabled" status to Exchange?

For the life of me, I can't figure out why. I have rebooted, did any server
updates etc...I could sure use any help or guidance.

I know I can do some workarounds to stop mail from getting to these
accounts, but I am trying to figure out the underlying problem. Thanks for
any help!