I am currently running MS SBS 2003. We have a large number of user accounts which have been disabled, due to employee termination. The accounts are listed as being disabled in both AD and Exchange. However, we have recently begun receiving large amounts of spam for these accounts. For some reason, Exchange seems to still be recognizing the accounts as being active, at least to the point where it does not reject the mail due to invalid address.
We keep getting a warning in app logs showing:
" Disabled user /o=First Organization/ou=first administrative group/cn=Recipients/cn=UserU does not have a master account SID. Please use Active Directory MMC to set an active account as this user's master account. "
This would normally be no biggie, but we have been recieving such a large volume that it is interfering with system performance.
Is there a way to disable these accounts so that Exchange does not even recognize these as valid addresses?
BTW, we need to retain the mailboxes for archival purposes, so deleting the accounts is not an option.
Thank in advance,