SPAM rules on Inbox after migration from Exchange 2003 - GFI Mail Essentials

Question

Hello,
Few times ago, we had an Exchange 2003 server with mailboxes which were configured with "rulemgmt.exe" tool (from Microsoft ?) to manage users mailboxes and SPAM redirection in these mailboxes.
GFI MailEssentials (antispam) was installed on a mail relay and once a SPAM was detected, it was redirected in Inbox/SPAM folder on user mailbox thanks to the rule defined by "rulemgmt.exe".
Recently, we did a migration from Exchange 2003 to 2010. Unfortunately, "rulemgmt.exe" doesn't work anymore on Exchange 2010 and it's replaced by a "Transport Rule" which works fine but only to redirect SPAMs in Junk e-mail folder. However,
if I don't set up this transport rule, SPAM redirection still works from mailboxes which were created on Exchange 2003 and e-mails go to Inbox/SPAM as before... For new mailboxes on Exchange 2010, it doesn't work which is normal.
My question is: for old mailboxes from Exchange 2003, where are the SPAM redirection (Inbox/SPAM) information stored? I don't understand how SPAM can be redirected if the information is not stored in Exchange...
The aim is to use Junk E-mail folder with the Transport Rule at the end everywhere and to clean old rules used for Inbox/SPAM.
I contact GFI support but they couldn't help me.
Any idea?
Regards,
DeltaSM
           

Answer 1

Those old mailboxes probably have old rules still set.  You can use the Outlook.exe /cleanrules switch to purge those old rules.  This would require that you create an outlook profile for each of those impacted mailboxes.
You can also look at using MFCMapi -
http://support.microsoft.com/kb/2860406/en-us
When that is done, you might want to perform a Clean-MailboxDatabase and then look at the mailbox rules (get-inboxrule).  If that does not work for you, could be something else within the mailbox and as such, I would recommend working with MS to get
more info.
DaDougInc