One or more users currently use a mailbox store on this server - Migrating from Exchange 2003 to 2010

We have a client who is gettign rid of their 2003 Exchange server.  This is a good thing because 2010 is pretty good.  After following all the Migration steps here, i attempted to uninstall exchange 2003 and i got this message

"One or more users currently use a mailbox store on this server"

After a google i found this article from Microsoft.  If you discover that you have a regualr user (Not the SMTP User) then either move their mailbox or delete it/remove their Exchagne attributes.

Now in my case i had moved all users and none of the results i got helped me, until i found this article below.

http://msexchangetips.blogspot.com/2008/04/exchange-one-or-more-users-currently.html

So briefly, we use an advanced LDAP AD search to find users that have had exchange attributes added to their accounts but they have not opened their mailbox.

Below is the LDAP command with what you need to change in RED so you can get results:

(msExchHomeServerName=/O=myexchangeorgname/OU=myorgname/cn=Configuration/cn=Servers/cn=myexchangeserver)(objectClass=User)

Also make sure there are no spaces in the command.

-Fr33ze

Blackberry Desktop 6 and SchoolZone Proxy

Now if you're like me and have a client wh has SchoolZone but would also like to have some control over what traffic goes out of the system and also have ISA server in the mix, chaining to an up stream proxy (schoolzone), you may have encountered an issue with BB desktop 6 and its requirement to connect to the internet before it will sync to the users outlook.

WELL it took me a little while but once i reviewed the logs from ISA i notice that schoolzone authentication was dropping off after a few minutes and wasnt asking for reauthentication.

So what i had to do to fix it was in the chaining properties for the up stream proxy i needed to enter static credentials into the isa server so that it wouldnt ask for authentication, after this blackberry desktop manager worked 100% and after the first sync it never needs to connect to the internet again.

I'll edit this blog with screenies so you can find your way, although its ISA and not that hard.

-Fr33ze