PST Data Migration to Microsoft 365
Built for organizations with 2k+ mailboxes and complex IT environments. If you have a handful of PSTs on a few laptops, Microsoft's native tools will do the job - and this isn't for you.
If you have hundreds or thousands of PST files scattered across user machines, offices, departed employees, or M&A-acquired environments, book a 30-minute scoping call with a Cloudficient migration specialist. We'll review your environment, identify the technical risks, and give you a realistic timeline and budget range.
Earlier in your evaluation? Download our PST Migration Preparation Guide here.
What does a PST migration involve?
PST migration at enterprise scale means consolidating thousands of pst files that are scattered across user workstations, network shares, departed-employee storage, offices, and acquired environments into Microsoft 365 in a structured, defensible way.
For most large organizations, that means tens or hundreds of thousands of PST files containing millions of items, with retention obligations, legal holds, and chain-of-custody requirements that Microsoft's native tools were not designed to handle at scale.
Cloudficient's PSTComplete automates the discovery, transformation, and ingestion work. Our specialists handle the project planning that keeps it on track and within scope.
Why this matters for enterprises
Compliance and legal hold exposure
Regulated organizations are legally responsible for the email retention obligations on every PST file they hold, regardless of where the file lives.
PST data on a departed employee's laptop is still subject to litigation hold and regulatory inquiry. Most enterprises discover this risk only when a compliance officer or outside counsel asks the question at the wrong moment.
M&A and integration debt
Enterprises that have grown through acquisition routinely inherit the PST sprawl of every company they've absorbed.
Three M&A deals can mean three different sets of PST conventions, three sets of legacy storage locations, and three sets of legal holds, none of which were designed to be reconciled.
Microsoft 365 native tools fall short at scale
Microsoft's native PST import works for a handful of users. With thousands or tens of thousands of PST files, it becomes a multi-quarter manual project with no governance layer, reconciliation reports, or a way to handle leaver data or legal holds defensibly.
What You'll Get From the 30-Minute Call
Earlier in your evaluation? Download the PST Migration Preparation Guide here.