finally nailed it, sigh .....dreaded ... you have exceeded the size limit of your mailbox

finally nailed it, sigh .....dreaded ... you have exceeded the size limit of your mailbox

another message would be outlook.ost file reached its max size, consider change to unicode

the client PC is running windows-xp, outlook 2007, the server is sbs 2003 server

I tried heaps of things, but the ost file size will stop at 2.0gb and throw up a mailbox cleanup message. the actual mailbox size is 2.3GB.

yet changing from ANSI to unicode eventually get rid of the problem

http://technet.microsoft.com/en-us/library/cc179012(office.12).aspx

only 1 PC got that problem, so I did gpedit.msc

and load adm template for outlook 12.

and do this (I just copy /paste here)
To enforce Unicode format for new PST files by using Group Policy

1. In Group Policy, load the Office Outlook 2007 template (Outlk12.adm).
2. To customize the Unicode format, under User Configuration\Administrative Templates\Microsoft Office Outlook 2007\Miscellaneous, double-click PST Settings.
3. Double-click Preferred PST Mode (Unicode/ANSI).
4. Click Enabled to enable the policy setting.
5. In the Choose a default format for new PSTs drop-down list, select Enforce Unicode PST.
6. Click OK.

To enforce Unicode mode in Outlook by using Group Policy

1. In Group Policy, load the Office Outlook 2007 template (Outlk12.adm).
2. Under User Configuration\Administrative Templates\Microsoft Office Outlook 2007\Tools | Account Settings, double-click Exchange Settings.
3. Double-click Exchange Unicode Mode — Ignore Archive Format.
4. Click the Enabled radio button to enable the policy configuration.
5. Select the Ignore existing format of the Archive PST check box, and click OK.
6. Double-click Exchange Unicode Mode — Ignore OST Format.
7. Click the Enabled radio button to enable the policy configuration.
8. In the Choose whether existing OST format determines mailbox mode drop-down, select Create new OST if format doesn't match mode. Users are prompted for the file name of the new OST file.
   –or –
   To prompt users with a dialog box that allows them to defer creating a new OST, select Prompt to create new OST if format doesn't match mode. Users are prompted to decide whether to create the new OST file now or later, and then (if they choose to create the file now) for the file name of the new OST file.

eventually the message disappear, after the new ost become unicode. the new ost size is 2.1GB