Although mailbox size limits are the primary driver for creating .PST files, there are other reasons why .PST files are used, which include:

	Offloading storage from Microsoft Exchange and thus reducing network traffic between Outlook and Exchange (as users retrieve and search email locally)
	Accessing email when not connected to the Microsoft Exchange Server, which creates a local email store as a form of backup.

While these methods could be effective in the short-term, the .PST file approach has many drawbacks, such as:

	Using .PSTs files breaks Microsoft Exchange's Single Instance Storage (SIS) feature - instead of having one email copy on the Exchange Server, there will be a copy of the email for each recipient using .PST files, significantly utilising more storage.
	Using .PST files, pushes email management problem onto local computers and network file servers, distributing the problem.
	.PST files commonly becoming corrupt when approaching 2GB in size as they are not designed to be this large.
	Outlook users inadvertently deleting their data from .PST files, with no way of restoring individual mail.
	The weakening of corporate security. .PST files can easily be removed from desktops taking with them corporate confidential knowledge.
	Company retention of mail can not be managed through distributed .PST files, which may violate corporate retention management policies, which are critical in regulated environments.
	Completing a global search for that one particular email that is crucial for a court case or for a tribunal is not possible is email is distributed across the company in .PST files.

All of the problems associated with .PST files can be avoided with
ZANTAZ Exchange Archive Solution (EAS). Archiving with EAS solves the problem of “too much information”, and other problems with .PST files
that administrators are now facing.

So how does EAS solve .PST File issues?
EAS has built-in tools for gathering, archiving and granting user access
to .PST file information. These sophisticated tools are automated for ease
of use and increased performance. All major .PST file processes are scheduled and can be run during off-hours for optimal performance and minimal impact to the overall environment.

.PST Gathering
EAS is able to locate all .PST files created by any user, whether on network file shares or desktops. EAS accomplishes this with a fully automated scheduling process. With automated .PST file gathering, EAS is able to
map all permissions and user profiles without the need for user intervention or involvement. EAS can also remove PST passwords where set - again without need for intervention. PST files are gathered into a central, secure location during the migration period.

.PST Archiving
EAS can archive .PST files from local drives, the network share or even a single network copy. When EAS archives any .PST file it applies Single Instance Storage (SIS) and data compression for optimal efficiency. With
SIS and data compression, EAS will save an average of 50% of the required storage space. A company using EAS for .PST file archiving can be assured that all .PST files will be securely archived, stored, and accessible for future use.

.PST File User Access
Archived email and .PST files are accessible to users based on existing email or network permissions. EAS provides users with four options to enable them to access any archived files.

These are as follows:

	Accessing Contents using Shortcuts in .PST File
	Accessing Archived .PST files using a Base Folder in Outlook
	Accessing Migrated .PST File Contents without Shortcuts
	Accessing Migrated .PST File Contents with the EAS web Client

Save space, time, and money with EAS
EAS can provide organisations with a wide range of tangible benefits. When an organisation uses EAS to archive the contents of .PST files, they will experience the following benefits:

Summary
The enforcement of mailbox limits causes Microsoft Exchange users to create their own local repositories for corporate email using .PST files. For companies suffering from the many risks and problems associated with .PST files, EAS is the answer.

EAS offers organisations an advanced, intelligent archiving tool that will eliminate the need for .PST files and solve the problems they create.

The following savings are typical when using EAS to archive .PST file contents:

	Storage space savings
	Reduction in backup times
	Reduction in administrative overhead
	Increased user productivity
	Enhanced legal compliance
	Reduce risk of information loss
	Improve corporate information security

For many companies, EAS solves the problems and high risks associated with .PST files by allowing administrators to gain control over the archiving
of .PST files, providing reliable and secure management of all corporate email.

EAS also offers significantly reduced email server overload, secures intellectual property, and empowers end users to easily access, retrieve
and restore email regardless of their geographic location. As a result, companies are now able to effectively incorporate email into their overall records management strategy and they are better able to comply with industry regulations.

To find out more about the Zantaz EAS solution, talk to your Servo Account Manger who will be happy to help. There's also plenty of information on http://www.zantaz.com

The clock's ticking for Exchange 5.5 and Exchange 2003 is getting hot with Windows Mobile 5.0
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