Create user on win2k domain does not create mailbox on ex2k server

Hi,

For some reason I can't fathom when I'm adding a user via
the mmc snap-in "Active directory users and computers" it
goes through the process of define mail server etc, but
when i check mail server the mailbox isn't there.

I find this on the exchange server:

Failed to read attribute msExchUserAccountControl from
Active Directory for /o=companyZ/ou=First Administrative
Group/cn=Recipients/cn=test.

Any ideas?