Introduction
As businesses expand, managing Outlook archives gets more challenging. This case study looks at how a mid-sized legal services company dealt with years of dispersed Outlook data following Exchange migrations, mailbox archiving and staff changes. The company amassed hundreds of Outlook data files over a twelve-year period, which complicated backups, hampered searches and postponed legal investigations.
The company wanted a workable solution to arrange archived mailboxes without running the risk of losing data. This study assesses both automated and manual methods, contrasts their results and quantifies the gains made following the application of a specific solution. Because the findings are based on actual operational data, companies handling huge Outlook archives can benefit from this investigation.
Overview of the Case Study
Sector
Legal Services (Mid-Sized Law Firm)
Statistics for Organizations
Parameter | Value |
Workers | 145 |
Outlook Users | 118 |
Total PST Files | 486 |
Total PST Data | 3.4 TB |
Average PST Size | 7.2 GB |
Largest File | 41 GB |
Total Emails | 9.8 million |
Email Attachments | 815,000 |
Contacts | 92,400 |
Calendar Items | 146,000 |
Challenges Faced by the Law Firm
Because each lawyer kept numerous archive files, the firm's Outlook environment had grown challenging to administer. The majority of users had three to eight Outlook archives open at once.
Among the main operating problems were:
It took an average of 27 minutes to locate emails for a single legal matter, which required examining multiple archives.
The IT department reconnected archive files and assisted staff in finding old emails for eighteen hours each week.
Due to frequent exports and mailbox backups, there were around 61,000 duplicate emails.
On many workstations, the startup time for Outlook increased from 25 seconds to over two minutes.
Handling 486 distinct archive files required complex backup and storage management.
It sometimes took two to three business days to gather past correspondence for legal audit requests.
Impact on Business
Both productivity and operating expenses were impacted by the disjointed archive structure.
Searches were slower for 118 Outlook users.
Each month, almost 180 staff hours were lost.
A number of archive files were larger than 20 GB, which raised the possibility of corruption.
The complexity of backup management increased dramatically.
Due to past communications being dispersed over several places, client answers and legal documentation were often delayed.
These numbers made it abundantly evident why PST Merge evolved from an administrative enhancement to a commercial requirement.
Getting Familiar with PST Files
What is a PST File?
Emails, contacts, calendars, notes, diaries and attachments are all stored locally in Outlook data files called PSTs (Personal Storage Tables). To minimize mailbox space or save historical correspondence, organizations frequently generate many archive files over a number of years.
What Makes PST Merge Crucial?
Maintaining hundreds of distinct Outlook archives lengthens search times, produces redundant data, makes backups more difficult and increases the risk of corrupting large archives. Long-term email management is made easier and Outlook performance is enhanced by combining linked archives into larger, well-organized files.
Proven Methods to Merge PST Files
Manual Method
At first, the IT department tried to manually arrange the archives.
The procedure comprised:
Recognizing duplicate archive files
Opening several Outlook archives at once
Establishing fresh destination archives
Making individual folder copies
Eliminating superfluous duplicate archives
Outlook profile reconfiguration
Manual Results
The firm's environment comprised 486 archive files totaling 3.4 TB, making manual consolidation impossible, even though tiny archive collections could be successfully combined.
Only a small portion of the archives had been reorganized after several days of testing. Due to the persistence of duplicate emails in several files, search performance remained uneven.
Manual Restrictions
Takes a long time to process hundreds of archive files.
It was necessary to manually identify duplicate emails.
The danger of corruption during copy operations was higher for large archives.
The administrator was solely responsible for maintaining folder uniformity.
Numerous archives stayed open, although Outlook became less responsive.
Over the course of long migration sessions, human error increased.
Automated Tool
The IT department used DataVare Outlook PST Merge Expert to combine departmental archives while maintaining mailbox structure after assessing manual restrictions.
Without changing emails, attachments, contacts or calendars, the program automatically combined linked mailboxes into well-organized departmental archives after processing all 486 Outlook archive files.
Tool-Based Result
The initiative yielded quantifiable gains:
Metric | Before | After |
PST Files | 486 | 67 |
Duplicate Emails | 61,000 | Less than 1,900 |
Average Search Time | 27 minutes | 6 minutes |
Outlook Launches | 2 Minutes | 34 Seconds |
Weekly IT Assistance | 18 Hours | 5 Hours |
Legal Audit Collection | Two to three days | Four Hours |
Outlook responsiveness was greatly enhanced for all 118 users and the decrease in archive files made backup administration easier.
Comparison of Manual and Tool-Based Methods
Manual Approach | Tool-Based Approach |
Managing individual archives | Processing of bulk archives |
Slow in big spaces | Effectively manages hundreds of files |
Duplicate elimination is done by hand | Automatic reduction of duplicate emails |
High levels of administrative work | Very little user involvement |
An increased likelihood of mistakes | Regular processing |
Extended project length | Completed considerably more quickly |
Advantages noted throughout the project
Quicker Email Searches: Workers improved daily productivity by cutting the average search time from 27 minutes to about 6 minutes.
Decreased Email Duplication: The number of duplicate messages decreased from over 61,000 to less than 1,900, resulting in cleaner archives.
Improved Outlook Performance: Because there were fewer archive files attached, Outlook opened much more quickly.
Streamlined Backup Procedures: It was considerably simpler to manage 67 well-organized archives than 486 separate files.
Enhanced Adherence to the Law: Instead of taking several business days, historical evidence might be gathered in a matter of hours.
Reduced Workload for IT: The amount of time needed for weekly archive support decreased from eighteen hours to roughly five hours.
Mailbox Format Preserved: Consolidation did not affect emails, folders, contacts, calendars or attachments.
Improved Long-Term Archive Management: Maintaining and finding departmental archive files got simpler in subsequent audits.
Drawbacks
Planning Is Necessary: Before starting the merge process, large businesses should categorize their archive files.
Data Size Affects Processing Time: It takes a long time to process large datasets that are many terabytes in size.
Backup Suggested Prior to Merging: It is still advisable to make a full backup before making changes to enterprise archive collections.
How to Merge PST Files
On a Windows computer, install the program.
Start the program.
Include one or more Outlook archive files.
Choose the option to merge.
Set up output preferences and duplication handling.
Select the folder that will be used.
View a few chosen archive files.
Launch the merging process.
Check the archive files that were created.
In Outlook, attach the combined archives.
FAQs
1. Why was it necessary for the law company to combine so many Outlook archives?
486 distinct archive files were produced during years of Exchange migrations, mailbox exports and employee changes.
2. To what extent was email search performance enhanced?
The average search time dropped from 27 minutes to about 6 minutes.
3. During consolidation, was any mailbox data lost?
No, throughout the project, emails, attachments, contacts, folders and calendars all stayed intact.
4. How many emails were eliminated as duplicates?
The number of duplicate messages decreased from about 61,000 to less than 1,900.
5. Did the project lessen the workload for IT?
Indeed, weekly support for the archives dropped from eighteen hours to about five.
6. Who gains the most from this kind of solution?
Organizations that oversee several Outlook archives, particularly those in the legal, medical, financial, educational and governmental sectors.
Final Verdict
This case study shows that as data volumes increase, manually handling hundreds of Outlook archive files becomes more and more wasteful. Legal evidence collection was expedited from several days to a few hours by consolidating 486 archive files, which also decreased duplicate emails, enhanced Outlook startup efficiency and streamlined backup administration.
According to this implementation, the solution is ideal for companies who have a lot of Outlook archive files, particularly those that keep long-term email records. The productivity gains greatly exceed these little factors, even though thorough planning and backup preparation are still crucial.
It is a sensible option for businesses looking for more effective Outlook archive management due to the quantifiable decrease in search time, administrative work, duplicate emails and archive complexity.
