crond[12345]: User account has expired

If crond is not running the dataskq program correctly, it has to do with the system account for 'diradmin' expiring (this is rare).

You can type

[root@server]# chage -l diradmin
Minimum:        0
Maximum:        99999
Warning:        7
Inactive:       -1
Last Change:            Apr 04, 2003
Password Expires:       Never
Password Inactive:      Never
Account Expires:        Never

to see the current status.

If it looks more like this:

[root@server]# chage -l diradmin
Minimum:        -1
Maximum:        -1
Warning:        -1
Inactive:       -1
Last Change:            Nov 08, 2005
Password Expires:       Never
Password Inactive:      Never
Account Expires:        Never

Then you'll need to run:

[root@server]# chage -m 0 -M 99999 -W 7 diradmin

I've heard other reports that it's an issue with AuthPAM