Case Study — 2025

Modernizing Messaging & Collaboration for a Global Insurance Enterprise

Seamless migration from legacy Lotus Notes to Microsoft 365 — enabling secure, scalable, and future-ready collaboration.

3,200+

Users Migrated

16 TB

Data Transformed

100%

Cloud Messaging Platform

Zero

Business Disruption

Client Overview

Client Context

A leading global insurance enterprise operating across multiple geographies.

A leading global insurance enterprise operating across multiple geographies with a legacy Lotus Notes environment sought to modernize its messaging and collaboration platform.

Industry

Banking & Insurance

Users

3,200+

Data Volume

16 TB+

Legacy Platform

IBM Lotus Notes

Locations

Global

Executive Pain

The Challenge

Legacy collaboration platform limiting scalability and agility

High operational overhead for maintaining Domino infrastructure

Complex coexistence requirements during migration

Risk of business disruption during large-scale data migration

Need for secure, compliant cloud-based messaging

"Client required a zero-disruption migration with enterprise-grade security and scalability."

Consulting Framework

Insyto Transformation Framework

A proven five-step methodology for enterprise migrations.

01

Assess

Readiness & Gap Analysis

02

Architect

Target Cloud Design

03

Pilot

Controlled Migration Testing

04

Migrate

Phased Rollout Strategy

05

Optimize

Post-Migration Support & Governance

Architecture

Solution Overview

Enterprise-grade cloud platform components.

Microsoft 365 (Exchange Online)
Azure AD Connect for identity synchronization
Co-existence between Lotus Notes and O365
Exchange Online Protection (EOP) for security
Proofpoint integration for email security
Quest Migration Tools for seamless transition
Deployment

Migration Strategy Options

Selected

Full Data Migration

  • Complete historical data migration
  • Phased rollout
  • High-touch enterprise approach

30-Day Migration

  • Recent data prioritized
  • Faster deployment
  • Balanced approach

No Data Migration

  • Clean cloud start
  • Lowest complexity
  • Fastest timeline

"Client selected a phased full-data migration approach to ensure compliance and continuity."

Execution

Execution Challenges & Mitigation

Calendar & free/busy sync issues
Implemented coexistence connectors
Data migration scale
Parallel migration architecture
Network constraints
Off-hour migration scheduling
User adoption
Structured training & support model
Security risks
Integrated EOP + Proofpoint controls
Results

Business Impact

Measurable outcomes delivered for the enterprise.

100% migration of 3,200 users to Microsoft 365
Improved user experience & productivity
Reduced infrastructure cost (TCO optimization)
Enhanced security & compliance posture
Scalable cloud-first collaboration platform

"Insyto enabled a seamless transition to modern workplace with zero disruption to business operations."

Why Us

Why Insyto

Microsoft ecosystem expertise (M365, Entra ID, Security)
Enterprise-grade migration frameworks
Security-first approach
Fast-track delivery model
Executive-ready reporting & governance

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