CASE STUDY

Fixed PST Corruption with 80% Success Rate, Preventing Data Loss and Downtime

Swicomm ITMS faced repeated PST corruption, resolved with Stellar Repair for Outlook.

Introduction:

Swisscom is the leading ICT company in Switzerland and, with Fastweb and Vodafone, ranks as the strong #2 in the Italian market. The company provides mobile, Internet, and TV services alongside a wide range of IT and digital solutions for both private and business customers. Known globally for its commitment to sustainability, Swisscom is recognized as the most sustainable telecommunications company in the world and is 51% owned by the Swiss Confederation.

Operating in such a demanding, fast-paced market, Swisscom’s IT services team often faces critical Outlook-related challenges. In several instances, they encountered PST file corruption that could not be resolved using Microsoft’s built-in repair tools. These issues posed a serious threat to continuity for both internal teams and external clients relying on historical email data for operations, compliance, and customer communication.

Background:

In a typical client support scenario, Swicomm encountered PST file corruption that Microsoft's built-in tool, ScanPST, could not fix. This situation frequently impacted users who relied on access to historical emails for legal, operational, and executive purposes. Inconsistent recovery results from native tools pushed the IT team to look for a robust alternative that could provide consistent results.

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Statement from the customer:

On numerous occasions scanpst does not resolve the problem. My last line of defense if Stellar and that works 8 times out of 10. I've had some occasions where the file was too corrupt, and it didn't work. I'm okay with that

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Impact on the Business:

For Swicomm and its clients, inaccessible Outlook data meant delays in communication, broken workflows, Outlook not working and potential financial or legal setbacks. In one case, a client faced days of halted work because they could not access archived emails essential for a project. The risk of losing years of email data posed a serious business continuity threat, making a fast and effective recovery tool essential.

Attempted Solutions:

Initially, Swicomm relied on Microsoft’s ScanPST utility, but it often failed to repair heavily corrupted PST files. Other freeware options were either ineffective or unreliable. Rebuilding mailboxes from backups wasn’t always possible, especially when clients lacked recent or complete backups. These gaps led to data recovery becoming a critical business function.

Solution and Benefits:

Stellar Repair for Outlook became Swicomm’s trusted final solution. The tool worked “8 times out of 10” to recover data from corrupt PSTs—even those ScanPST couldn’t fix. The platform’s speed, accuracy, and simplicity helped minimize downtime and restored critical communications with minimal disruption.

Swicomm also benefited from Stellar’s 24/7 technical support. For a company operating in IT where “there’s no such thing as a day off,” round-the-clock assistance was a key factor in ensuring fast client service.

Conclusion:

Stellar Repair for Outlook has become an integral part of Swicomm’s toolkit. The product consistently delivers results where other tools fail, giving clients peace of mind and reducing data loss risk. Stellar’s proactive support and dependable software empower Swicomm to deliver high-stakes IT solutions with confidence.