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Microsoft · Microsoft Exchange Server → Grommunio · Migration

Proven Exchange to Grommunio Migration – Fixed Scope, Senior Engineers

Yes, migrating Exchange to Grommunio is a well-understood project. Senior engineers run your fixed-scope move, keeping Outlook native via MAPI/HTTP. No plugins.

Get My Free AssessmentFree consultation with our senior engineers to scope your move.

Get My Free Assessment

Free consultation with our senior engineers to scope your move.

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Powered by the 3PS Migration Engine

The lowest-cost way off Microsoft Exchange Server: our migration tooling automates the repetitive work —you pay senior engineers for judgment, not keystrokes.

Automated discovery
Your Microsoft Exchange Server estate mapped — workloads, dependencies, licensing — before day one
Conversion tooling
Schema, config and workload translation to Grommunio, automated where it's safe
Parity validation
Side-by-side testing proves Grommunio matches production before cutover
Runbook cutover
Rehearsed, reversible, scheduled in your maintenance window
100%
Projects delivered with fixed scope, on budget
40-70%
Typical savings vs Microsoft licensing renewals
24/7 US-based suppor
Senior engineers on every migration team

How we support Microsoft Exchange Server → Grommunio after migration

  • Senior platform engineers run your migration – fixed scope, no surprises.
  • Keep Microsoft Outlook native via MAPI/HTTP protocols – zero plugins.
  • 40-70% savings vs Exchange license renewals while you migrate.
  • Vendor support remains active on your timeline – no forced big-bang cutover.
  • 24/7 US-based post-migration managed hosting, patching & directory admin.
  • Certified Grommunio partners with deep Microsoft Exchange heritage.

Transport agent complexity

Complex Exchange Transport Agents are integrated during migration via Grommunio's native MTA – no re-engineering.

Active Directory schema lock-in

Proprietary Active Directory schema? We map it to LDAP cleanly, avoiding migrational bottlenecks.

Rising Microsoft licensing costs

Escalating Microsoft licensing costs hit budgets hard. Grommunio is an open-source alternative that eliminates per-user fees.

Microsoft Exchange Server → Grommunio migration — your questions answered

How long does an Microsoft Exchange Server to Grommunio migration take?+

Typically 2–5 months with 2–4 senior consultants on your project.

Will Outlook work after migrating to Grommunio?+

Yes – we keep Outlook running natively via MAPI/HTTP. No re-training or plugins.

What happens to support during the migration window?+

Your legacy platform stays under vendor support while your contract is active. If it lapses, our third-party support covers most operational issues – not patches or vendor support.

Do you support complex Exchange transport agents and AD schema?+

We map Active Directory to LDAP and handle transport agents via Grommunio's MTA. No proprietary schema lock-in.

Fix-Scope Exchange to Grommunio Migration – Book Your PoC Today

Your path to a seamless Exchange to Grommunio migration is clear: fixed scope, senior engineers, full Outlook compatibility. Ready for a no-risk proof-of-concept and design assessment?

Get a Quote

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