Act 1
DIY migrations risk downtime, data loss, and angry users
Cutover without specialists leads to DNS mistakes, throttling, and failed syncs. Business continuity suffers when email stops flowing.
0downtime target on managed programs
Email Migration Services
Offering the fastest and secure way to migrate mailboxes quickly. Zero downtime, no data limits, tool-assisted and manual migrations, fully managed end to end — with post-migration support.
Email migration with zero downtime.
- Cloud to cloud
Microsoft 365 ↔ Google Workspace
- On-prem to cloud
Exchange, Notes → M365 / Workspace
Fastest, secure mailbox migrations — fully managed end to end.
10+ years migration experience — get a free quote, save up to 50%.
3,000+ mailboxes migrated in 90 days
200+ Clients worldwide · 350+ Projects shipped
Why Spectrum
- Zero downtime
- No data limits
- Tool-assisted & manual migrations
- Fully managed end to end
- Post-migration support
Migration paths
10+ years of experience with various migration types
Certified migration specialists for on-premise, hosted, Microsoft 365, and Google Workspace — with minimum effect on business continuity.
On-premise to cloud
Migrate email running on hosted Exchange, Lotus Notes, or other legacy systems to Microsoft 365, Google Workspace, and modern cloud platforms.
Cloud to cloud
Migrate between Microsoft 365 and Google Workspace with minimum impact on business continuity — guided by certified migration specialists.
End-user deployment
Migration is not complete without device configuration. We assist end-user deployment via desktop sharing tools and onboarding to the new platform.
The migration story
From legacy mailboxes to modern cloud email
Structured waves, coexistence, and hypercare — so IT and users experience zero-surprise cutover.
“Migration is not complete until every user is productive on the new platform.”
Free quote
Get a free quote — save up to 50%
Tell us your source and target platforms, mailbox count, and timeline. We respond within one business day with a migration plan and quote.
Migration focus
On-prem → cloud· Exchange, Notes → M365 / WorkspaceCloud to cloud· M365 ↔ Google WorkspaceEnd-user rollout· Device config & onboardingPost-migration· Hypercare & validation
Your path · details to migration quote
- 01
Share migration details
Migrate from/to (on-prem, O365, Google Workspace), mailbox count, constraints.
- 02
Assessment & plan
Wave design, coexistence, DNS, and tooling recommendation.
- 03
Quote & schedule
Fixed-scope quote and kickoff — within one business day.
What you walk away with
Delivered within one business day — no obligation.
- Migration plan with zero-downtime approach
- Wave schedule and coexistence design
- Tool-assisted + manual execution model
- No obligation · NDA-ready · Same-day response
Get a free quote
Save up to 50% — share your migration details and we respond within one business day.
- ISO 27001:2022 certified
- 10+ years migration experience
- NDA-ready · Same-day response
Case study
How we migrated 3,000 users from Google Workspace to Microsoft 365
Migrated an existing mail environment with around 3,000 accounts from Google Workspace to Microsoft 365 due to platform requirements — completed in 90 days with 0% data loss targets and minimum business disruption.
At a glance
Email migration at scale
- 10+
Years migration experience
- 3,000+
Mailboxes in largest program
- 90
Days for enterprise GWS→M365
- 0
Downtime target
- 48h
Quote turnaround
- 100%
End-to-end managed option
Client benefits
How your organization benefits
Zero downtime
Cutover planning that keeps email flowing for your business.
No data limits
Tool-assisted throughput scaled to your mailbox volume.
Fully managed
End-to-end program — not a tool-only handoff.
Users onboarded
End-user deployment so migration is truly complete.
Post-migration support
Hypercare after cutover until stability is proven.
Questions
Frequently asked questions
Do you guarantee zero downtime?
We design migrations for zero downtime using coexistence, staged waves, and rehearsed cutovers. Exact approach depends on your source and target platforms and mailbox complexity.
Can you migrate from Google Workspace to Microsoft 365?
Yes. Cloud-to-cloud migrations between Google Workspace and Microsoft 365 are a core capability — including large programs with thousands of mailboxes.
Can you migrate from on-premise Exchange?
Yes. We migrate from hosted Exchange, Lotus Notes, and other legacy systems to Microsoft 365, Google Workspace, and modern hosted email.
Do you help with end-user device configuration?
Yes. End-user deployment is part of a complete migration — we assist via remote sessions and onboarding guides so users reach the new platform productively.
Is there a limit on mailbox size or count?
We use tool-assisted and manual methods with no arbitrary data limits — programs are scoped based on your mailbox count, size, and timeline.
How long does a large migration take?
Depends on scale. Our 3,000-mailbox Google Workspace to Microsoft 365 program completed in 90 days with structured waves and governance throughout.
Do you provide post-migration support?
Yes. Post-migration support and hypercare are included in fully managed programs until validation and user stability are achieved.
How quickly can I get a quote?
We respond within one business day after you submit your migration details — source, target, and mailbox count.
Email migration
Ready to migrate mailboxes with zero downtime?
On-premise to Microsoft 365 or Google Workspace, cloud-to-cloud moves, and end-user deployment — tool-assisted, fully managed, post-migration support.
100% confidential
We sign NDA
Same-day response
Explore cloud management
Need ongoing cloud operations?