PST files were once a convenient way to store and transport email data, but today they often create significant compliance, security and operational challenges. This article explores the risks associated with unmanaged PST files — including data loss, fragmented eDiscovery and poor governance — and explains why organisations are increasingly migrating PST data into Microsoft 365, Google Workspace and modern archive platforms.

Ultimate Migrator helps organisations reduce the cost, complexity and risk associated with legacy email archive platforms. By migrating historic email data from systems such as Enterprise Vault, Mimecast, Proofpoint and PST archives into Microsoft 365 or Google Workspace, organisations can simplify eDiscovery, strengthen compliance, retire unsupported infrastructure and reduce ongoing licensing and operational overhead. This article explores the financial, operational and strategic case for archive migration.

Cloud migration projects often focus on active mailboxes and collaboration tools, while historic archive data is left behind in ageing platforms. This article explores why successful cloud transformation requires organisations to address legacy email archives as part of their wider strategy — helping reduce operational complexity, improve compliance and unlock the full benefits of Microsoft 365 and modern cloud environments.