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