Migrating from OpenText to Microsoft Exchange

This guide outlines a project-based methodology for migrating from an OpenText system to Microsoft Exchange. It summarizes the typical stages — assessment, strategy, execution, content handling, validation, and post-migration support — and describes tool options such as OpenText™ Exchange Administrator and OpenText™ Migrate to streamline and automate the process while minimizing disruption and protecting data integrity.

Prerequisites

• Current-state inventory of OpenText repositories, data volumes, retention policies, and integrations.
• Access to the target Exchange environment (Exchange Online or Exchange Server) and required admin roles.
• Backups of OpenText content and configuration before any exports or transformations.
• Non-production environment to run pilots and performance tests.
• Security, compliance, and legal sign-off for retention/hold mapping and data handling.

Tool Options

General Migration Process

1. Assessment — Analyze the existing infrastructure, risks, dependencies, and readiness.
2. Strategy — Build a migration roadmap: target architecture, security, sequencing, and resource optimization.
3. Execution — Phased runs to minimize disruption; continuous testing to validate performance and fidelity.

Content Handling

1. Export — Scan and export content from the source OpenText system.
2. Analyze & Classify — Group items into migration sets by shared attributes (custodian, date range, retention, etc.).
3. Transform — Map and transform metadata to align with the Exchange schema and policies.
4. Import — Import into the target system with transactional tracking for each item.

Validation & Post-Migration

• Validation — Confirm that all content moved successfully; reconcile counts and run user acceptance.
• Support — Ongoing monitoring, tuning, and optimization to ensure the environment meets business needs.

Key Considerations

• Data Integrity — Protect item fidelity across export, transform, and import; maintain chain-of-custody and audit logs.
• Minimizing Downtime — Use phased, repeatable runs and pilot groups to reduce impact to users.
• Cloud Migration — For Exchange Online, plan identity, modern auth, and throttling; ensure post-go-live assistance.
• User Acceptance — Include end-user validation and training to ensure satisfaction with the target system.