How to Choose the Best Outlook 365 to Gmail Migration Vendor

Moving from Outlook 365 to Gmail (Google Workspace) is a big deal for any business. Whether driven by cost savings, user adoption or business size move to Google Workspace, the migration involves moving emails, calendars, contacts, attachments and even shared mailboxes at times.

The problem? A poorly managed migration can cause downtime, lost data, corrupted permissions or even compliance issues. That’s why choosing the right Outlook 365 to Gmail migration company is key.

In this guide we’ll walk you through the key things to evaluate when choosing a migration partner, as well as why choose CloudFuze as your migration partner.

Why Choosing the Right Outlook 365 to Gmail Migration Vendor Matters

Migration between Outlook 365 and Gmail doesn’t involve a simple export and import of PST files. Enterprise grade migrations require:

• Migrating thousands of user mailboxes.
• Preserving folder structure, labels and categories.
• Preserving read/unread status, metadata and timestamps.
• Migrating calendars, contacts and rules.
• Zero downtime for users.

Choosing the right company means your business isn’t hit with loss of data, productivity and security risks.

Major Points to Evaluate When Choosing an Email Migration Company for Your Enterprise

1. Migration Capabilities

Not all companies handle the same workload. When considering, ask:

• Do they migrate emails, calendars, contacts and attachments?
• Do they migrate shared mailboxes, aliases and distribution groups?
• Do they migrate archives and large mailboxes without timing out?
• Do they migrate permissions, folder hierarchies and labels?

A Gmail migration company should provide end-to-end migration solutions, not just email transfers.

2. Scalability and Performance

Enterprise migrations affect thousands of users. Look for:

• Large scale environment migration ability (10,000+ users).
• Batch or phased migration support.
• Parallel migration job capability for reducing downtime.
• API based migrations (not manual PST imports) for speed and reliability.

3. Security and Compliance

Your emails contain sensitive business data. The company needs to:

• Use secure APIs instead of manual exports.
• Offer end-to-end encryption for data in transit. GDPR, SOC 2 Type 2 compliant (subject to your industry).
• Audit logs and reporting for compliance audits.

4. Automation and Mapping

Manual migrations are error-prone. Ask if the company supports:

• Automated mapping of users from Outlook 365 to Gmail.
• CSV mapping for special requirements.
• Label-to-folder mapping from Outlook to Gmail.
• Automated alias, shared mailbox and calendar invite management.

5. Downtime and End-User Experience

Downtime is expensive. Ask for:

• Zero downtime migration.
• Background syncing to allow end-users to function normally while migration is being done.
• Change management toolkits for end-users.

A user-first migration means adoption without any disruption.

6. Support and Expertise

The migration vendor must offer tool with expert support:

• 24/7 support during migration.
• A dedicated project manager for large-scale migrations.
• Post-migration validation and debugging.
• Experience with similar projects (case studies, client referrals).

7. Cost and Pricing Models

Pricing should be transparent and scalable:

• Per-user pricing versus flat project price.
• Hidden fees for large mailboxes or extended timelines.
• Clear ROI like is the vendor reducing IT overhead?

Why Choose CloudFuze as Your Migration Partner

At CloudFuze, we specialize in Outlook 365 to Gmail enterprise migrations with advanced automation, zero downtime and full workload support.

CloudFuze Migration Features:

• Migrate emails, contacts, calendars, tasks, attachments and permissions.
• Automated user mapping (also CSV + auto-detection).
• End-to-end encryption with secure API-based migration.
• Support for 10,000+ users and large enterprises.
• Dedicated migration experts and 24/7 support.
• Compliance-ready.

We’ve been doing complex enterprise migrations for 12+ years and therefore have the expertise to make your transition from Outlook 365 to Gmail smooth, secure and stress-free.

For a detailed and easy Outlook 365 to Gmail migration process, watch this video:

CloudFuze vs. Other Tools: CloudFuze Rated 4.8/5 with 94% Recommendation Rate

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On Gartner, among all competitors, CloudFuze stands out with 48 reviews, an impressive 4.8/5 rating, and 94% of users willing to recommend it. Ready to see why so many enterprises trust us? Give CloudFuze a try today.

Frequently Asked Questions

1. How long does it take to migrate from Outlook 365 to Gmail?

The timeline depends on factors like the number of users, mailbox size, and workloads being migrated. With solutions like CloudFuze, enterprises can speed up the process using API-based migrations and parallel job execution.

2. What are the common challenges in Outlook 365 to Gmail migration?

Businesses often encounter issues such as broken permissions, incomplete user mapping, or downtime. We at CloudFuze help overcome these challenges by automating user mapping, preserving folder hierarchies, and following the best practices.

3. How much does an Outlook 365 to Gmail migration cost?

Pricing may vary by vendor, project size, and migration complexity. With CloudFuze, enterprises benefit from transparent, per-user or project-based pricing models that avoid hidden costs.

4. Why should I use a third-party migration vendor instead of doing it manually?

Manual PST-based migrations are time-consuming, prone to errors, and not scalable for large enterprises. Third-party tools such as CloudFuze automate the entire process, support all workloads (emails, calendars, contacts, attachments, shared mailboxes), and provide expert support for a smooth as well as zero-downtime migration.