Mimecast, Barracuda, EV.Cloud to name just a few have long positioned themselves as a secure, cloud-based archive solution, especially attractive to organisations running on-premise Exchange or hybrid infrastructure. But now, as the shift to Microsoft 365 and other cloud-based services accelerates, many IT teams are finding that what once solved a problem is now creating a new one.
The blocker? Migrating data out of Mimecast and other cloud platforms – especially at scale – is expensive, slow, and technically challenging.
In particular, cloud providers’ extraction costs are increasingly hard to justify. Customers looking to leave face fees to retrieve their own archived data, often quoted per gigabyte and rising sharply when dealing with journal archives or multi-year retention. Combined with technical bottlenecks, throttling limits, and restrictive SLAs, these costs can turn a straightforward email archive transition into a drawn-out, expensive exercise.
That’s where Ultimate Migrator comes in.
We offer a faster, simpler, and more affordable way to extract data from platforms such as Mimecast and migrate it directly into Microsoft 365 and other alternative email archive destinations securely, compliantly, and with minimal disruption.
Why partners choose Ultimate Migrator
We work with a growing network of IT resellers, integrators, MSPs and MSSPs who need a dependable partner to handle specialist archive migration tasks, particularly where in-house teams or broader cloud transformation programmes don’t cover the full requirement.
We support:
- Personal archive mailbox extraction
- Full journal archive recovery (including chain-of-custody)
- Structured delivery into Microsoft 365 user mailboxes, shared mailboxes, or compliance repositories
- Migrations to Google Workspace and hybrid destinations (where required)
- Migrations to platforms such as: Cryoserver: Libraesva: Proofpoint: Jatheon, and virtually all of the alternative platforms
Everything we do is fully auditable, secure, and retention-compliant. We work closely with partners and end clients to plan, stage and deliver migrations with zero user involvement and no business downtime. Where speed matters, we can move tens of terabytes in weeks, not months.
Real-world impact
We recently supported a leading pharmaceutical company with the extraction and migration of 12TB of legacy email archives from Mimecast into Microsoft 365.
The organisation had already completed its Microsoft 365 rollout but was locked into a costly Mimecast subscription purely to maintain access to old email records. Internal attempts to manage the extraction had stalled due to licensing, throughput and compliance concerns.
We were able to:
- Extract personal and journal data from Mimecast in line with security policy
- Migrate into corresponding Microsoft 365 mailboxes, preserving metadata and searchability
- Decommission the legacy Mimecast environment ahead of renewal, saving the client six figures in ongoing costs
All of this was delivered in close partnership with the client’s managed services provider, who relied on Ultimate Migrator to handle the niche, high-risk migration piece while they maintained overall programme control.
Built for security, speed and simplicity
Ultimate Migrator was built from the ground up for archive migrations, with pre-built modules for Mimecast, Enterprise Vault, PSTs, public folders and more. Everything is hosted in the UK and fully aligned with GDPR, ISO27001 and Cyber Essentials requirements.
We’re not a generalist cloud consultancy or software vendor. We do one thing — and we do it well. That focus means:
- Faster setup and execution
- Lower cost per gigabyte migrated
- Simpler, transparent pricing
- No-nonsense reports and audit trails
Join our Partner Program
We’re proud to partner with IT providers across the public and private sectors. Whether you’re leading a full-scale digital transformation or need tactical support on a single archive, we’ll work as an extension of your team (white-labelled if required) and always focused on delivering a clean, secure, compliant migration.
If you have a current or upcoming need to move data out of Mimecast, or want a go-to partner for archive migration challenges, get in touch with us today.
Request a demo, discuss a client requirement, or explore our Partner Program.
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