Hybrid Office 365 Migration from your own Exchange Server: 7-Days Consulting Service

IT Partner LLC

Hybrid migration integrates on-premises Exchange with Microsoft 365, facilitating migration or serving as a permanent state for both organizations.

A hybrid deployment extends on-premises Microsoft Exchange to Exchange Online, providing seamless user access and centralized mail transport.

Topography example:

  • Single sign-on for on-premises and Exchange Online users
  • Unified email address domain
  • Centralized mail transport by on-premises organization
  • Sharing calendar and messaging features between on-premises and Exchange Online
  • Same URL for on-premises and Exchange Online mailbox connection

IT Partner Responsibilities:

  • Analyze current Exchange On-Premises solution
  • Prepare configuration for synchronization
  • Set up user and password synchronization
  • Provide informational letters and migrate mailboxes

Client Responsibilities:

  • Coordinate resources and provide access
  • Configure workstations and devices
  • Assist with DNS changes and high-risk user identification
  • Review and approve deliverables


  • Microsoft 365 tenant with Exchange Online licenses
  • Access to email domain DNS zone
  • Full installation of Exchange 2010, 2013, or 2016 server with valid UCC SSL certificate


  • Kickoff meeting
  • Source system health check
  • Migration planning and start
  • MX record change to new Microsoft 365 tenant
  • Final email migration and post-migration tasks

Success Criteria:

  • Users access Exchange Online seamlessly
  • Mailbox data successfully migrated and accessible
  • Transport rules, sending, and receiving emails function correctly
  • Exchange Online Protection configured and operational

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