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An organisation can connect its on-premises Microsoft Exchange users and cloud users into a single system in a hybrid exchange environment in the IT world.

For example, in the case of Microsoft 365, an organisation can integrate cloud services like SharePoint Online, Microsoft Teams, and Exchange Online with their on-premises counterparts to create officially supported “Microsoft Hybrid” solutions.

Active Directory Domain Services, Exchange Server, and Outlook client have been the bread and butter of Microsoft’s business productivity suite for two decades. Because of this, the first step for most Office 365 onboarding projects is migrating identities and mail. When one refers to “hybrid migration,” they refer to a specific, by-the-book deployment of Exchange Hybrid.

We cannot neglect the advantages and disadvantages of creating an Exchange hybrid environment. Whether it’s right for an organisation depends on several unique factors.

Why a hybrid exchange?

A hybrid exchange environment allows you to take your local environment and the cloud environment together as a single mail organisation.

It is practical because the management is on premise (Active Directory), and the mailboxes are accessible to manage via a hybrid environment towards Office 365 Exchange Online.

Hybrid = Recipient management on premise,
ACL (rights) online.

The main advantages of a hybrid exchange

  • Hybrid exchange enables secure email routing between your local and exchange online organisations and provides a clean and uncluttered experience. However, we cannot consider it is easy with an SMTP gateway.
  • Keeping that exchange hybrid server around allows you to continue to relay the same way as before.
  • Administrators can use powerful and familiar exchange management tools to manage team and project communications.
  • Hybrid exchange is required to migrate as efficiently as possible without user impact and reconfiguration of each device. For example, with a hybrid migration, only a username and password need to enter after moving the mailbox.

Decision factors for choosing hybrid

  • Cost comparison of on premise user accounts with cloud-hosted
  • Individual profile and for the particular applications
  • Regulatory restrictions to store data in specific places or ways
  • Target applications are available only in the cloud
  • Provides a centralized administration point and remove risk mitigation of moving to the cloud
  • Fear of the unknown; keeping old on-premise infrastructure simultaneously, running along with the cloud indefinitely.

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