PROBLEMA CON ARCHIVOS PST

Depende de la version, comprueba por ejemplo esto:

en 2002 tienes un fix para que te avise:

Description of the Outlook 2002 update: October 4, 2001
Microsoft has released an update to Microsoft Outlook 2002. This update
includes fixes to warn you when you are approaching the 2 gigabyte (GB) size
limit of Personal folder and Offline Store files (.pst, .ost), along with
fixes for other issues listed later in this article. This update also
includes fixes developed from Office Watson bug submissions.

y este tambien es interesante:

The .pst file has a different format and folder size limit in Outlook 2003
http://support.microsoft.com/defaul...-us;830336

Microsoft Office Outlook 2003 has both a different format and a larger
overall size limit for the personal folders (.pst) file than the .pst files
that are in the earlier versions of Microsoft Outlook. In Outlook 2002 and
earlier, the .pst files are in the American National Standards Institute
(ANSI) format, and the overall size has a limit of 2 gigabytes (GB).

By default, .pst files are in the Unicode format in Outlook 2003.
Additionally, the overall size of the .pst files has a limit that is more
than the 2-GB limit that is imposed by the ANSI .pst files. By default, the
limit for a Unicode .pst file in Outlook 2003 is configured to be 20 GB. For
more information, click the following article number to view the article in
the Microsoft Knowledge Base:
832925 (http://support.microsoft.com/kb/832925/) How to configure the size
limit for both (.pst) and (.ost) files in Outlook 2003

Pero tu lo que buscas es esto:

How to configure the size limit for both (.pst) and (.ost) files in Outlook
2003
mportant This article contains information about modifying the registry.
Before you modify the registry, make sure to back it up and make sure that
you understand how to restore the registry if a problem occurs. For
information about how to back up, restore, and edit the registry, click the
following article number to view the article in the Microsoft Knowledge
Base:
256986 Description of the Microsoft Windows Registry
SUMMARY
Microsoft Office Outlook 2003 supports both American National Standards
Institute (ANSI) and UNICODE personal folders (.pst) and offline folder
(.ost) files. This article describes how to use the following four registry
entries to limit the size of both the .pst and the .ost files: . The
MaxFileSize registry entry
. The WarnFileSize registry entry
. The MaxLargeFileSize registry entry
. The WarnLargeFileSize registry entry


The MaxFileSize registry entry
The MaxFileSize registry entry determines the absolute maximum size that
both the .pst and the .ost files can grow to. After this maximum size is
reached, Outlook 2003 does not permit the size of the file to grow beyond
this size.

The WarnFileSize registry entry
The WarnFileSize registry entry determines the maximum data that both the
.pst and the .ost files can have. After this maximum data is reached,
neither the .pst nor the .ost files are permitted to add any more data.
However, the size of the physical file may still increase because of
internal processes.

In the following table, the MaxLargeFileSize registry entry and the
WarnLargeFileSize registry entry refer to a UNICODE formatted (new Large
format) file, and the MaxFileSize registry entry and the WarnFileSize
registry entry refer to an ANSI formatted (an earlier Microsoft Outlook
format) file. The UNICODE values are set in megabyte (MB) increments, while
the ANSI values are set in byte increments.

Name Type Valid Data Range Default
MaxLargeFileSize REG_DWORD 0x00000001 - 0x00005000 0x00005000
20,480 (20 GB)
WarnLargeFileSize REG_DWORD 0x00000000 - 0x00005000 0x00004C00
19,456 (19 GB)
MaxFileSize REG_DWORD 0x001F4400 - 0x7C004400 0x7BB04400
2,075,149,312 (1.933 GB)
WarnFileSize REG_DWORD 0x00042400 - 0x7C004400 0x74404400
1,950,368,768 (1.816 GB)



The policy location for the registry entries is located in the following
path in Registry Editor:
HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\11.0\Outlook\PST
The user preference location for the registry entries is located in the
following path in Registry Editor:
HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Outlook\PST
MORE INFORMATION

Follow these steps to configure the size limit for both the .pst and the
.ost files.

Note The settings that are discussed in this article apply to both .ost and
.pst files. If you modify these registries, this can affect .ost files that
are used with Cached Exchange Mode, with AutoArchive, and with .pst. files.

Warning If you use Registry Editor incorrectly, you may cause serious
problems that may require that you reinstall your operating system.
Microsoft cannot guarantee that you can solve problems that result from
using Registry Editor incorrectly. Use Registry Editor at your own risk. 1.
Click Start, and then click Run.
2. In the Open box, type regedit , and then click OK.
3. In the left pane, expand My Computer, and then expand
HKEY_CURRENT_USER.
4. Expand Software, and then expand Policies.
5. Expand Microsoft, and then expand Office.
6. Expand 11.0, and then expand Outlook.
7. Click PST, and then right-click MaxFileSize in the right pane.
8. Click Modify, and then type the value in the Value data box.
9. Click OK.
10. Right-click WarnFileSize, and repeat steps 8 through 9.
11. Right-click MaxLargeFileSize, and repeat steps 8 through 9.
12. Right-click WarnLargeFileSize, and repeat steps 8 through 9.
It is recommended that the values between the MaxFileSize registry entry and
the WarnFileSize registry entry, and the values between the MaxLargeFileSize
registry entry and the WarnLargeFileSize registry entry be at least 5
percent (%) so that internal processes are not hindered from continuing.

If the value of the MaxFileSize registry entry ever exceeds the ANSI 2
gigabyte (GB) limit on either the .pst or the .ost files, the value will be
ignored to limit the size to 2 GB to prevent corruption. The default value
for the WarnFileSizeregistry registry entry is calculated to be 95% of the
MaxFileSize registry entry for a UNICODE file, and it remains at
1,950,368,768 bytes for small ANSI files.

Note You can set the UNICODE limits beyond the values that are listed in the
table. However, we do not recommend doing this because performance can
decrease.

If .ost files or .pst files reach the limit that is specified in the
WarnFileSize or the WarnLargeFileSize registries, the compaction function is
triggered to try to reduce the size of the file to a usable level. When the
WarnFileSize or the WarnLargeFileSize limit is reached, e-mail messages
cannot be sent (provided that sent e-mail messages are stored in the Sent
Items folder), and items cannot be copied or moved within the file. If the
file is an archive .pst file that is used for AutoArchive, the AutoArchive
operation will fail. However, e-mail messages can be deleted or archived
from a .pst or from an .ost file that is currently being used as the default
delivery location.

The following are some of the errors that may occur when files reach the
maximums specified in the registries: . When you try to move items to a .pst
or an .ost file that has reach the limit, you receive the following error
message:
Can't move the items. The file <path>\<filename>.pst has reached its
maximum size. To reduce the amount of data in this file, select some items
that you no longer need, and then permanently delete them.
. When e-mail messages are delivered to a .pst or an .ost file that
are using Cached Exchange Mode, and the file has reached the limit, the
Mailbox Cleanup wizard launches.


Saludos

"DOUGLAS" wrote in message
news:

TENGO MUCHOS USUARIOS QUE UTILIZAN EL CORREO ELECTRONICO DE OUTLOOK
ARTRAVEZ
DE NUESTRO SERVIDOR DE EXCHANGE, Y GUARDAN SUS CORREOS EN UN ARCHIVO DE
CARPETAS PERSONALES PST, PERO ESTE TIENE UN LIMITE DE 2GB, AL LLEGAR A ESE
LIMITE SE DEGENERA Y CAUSA PROBLEMAS, SE QUE AY FORMAS DE RESCATARLO, PERO
NECESITO ALGUNA FORMA DE EVITAR QUE LLEGE A ESTE LIMITE, O QUE DE ALGUNA
FORMA OUTLOOK NOTIFIQUE QUE ESTA APUNTO DE HACERLO