Size of database - Eseutil /d

Hi,

We are using Exchange Server 2003 constructed Small Business Server 2003. The size of Exchange Mailbox Database have reached 33 Gbs. After we have made Mail cleaning among the users mailboxes the one by one summation of users mailbox sizes over Exchange Manager gives 20 Gbs but still it covers 33 Gbs of space on the disk.

Steps i have taken to reduce the size of database are as follows in order as i have done;
1st- offline defragmentation: eseutil /d => no change in size
2nd- database repair/fix : eseutil /p => no change in size
3rd- again offline defragmentation : eseutil /d => still no change in size
4th-changes have made under, Mailbox Store ->  Right Click -> Properties -> Limits -> Deletion Settings  as below;
Keep Deleted Items for (days) : 0
Keep Deleted Mailboxes for (days) : 0
and then offline defragmentation again bu eseutil /d => unfortanetely still no change

after this changes and attemps made, still the problem exists. is there any other suggestions about the reduction of this size problem?

Thanks in further,

Adnan