![]() ![]() IMAP migrations operate by extracting data from the user’s mailbox and then migrating the data into Office 365. Whilst the alternative migration types rely entirely on Exchange, Internet Message Access Protocol (IMAP) lets you move users from almost any hosted email system that has the capacity to support IMAP migrations. Finally, cutover migrations have a maximum migrations capacity of 2,000 mailboxes. This is the recommended migration type by Microsoft themselves for companies with fewer than 150 mailboxes, although they claim migration performance will suffer with any numbers higher than this. This includes mailboxes, calendars and distribution groups. Users who have been moved to Office 365 in say batch one, will still be able to send and receive email from those users still on-premises.Īs mentioned earlier, cutover migration is the immediate transfer of all on-premises resources to Office 365 in one batch, over the course of a few days. Staged migrations still move all the contents of users’ mailboxes from on-premises Exchange to Office 365, over the course of a pre-determined time, which could be a few weeks or months. The main difference between a staged migration and a cutover migration is the fact that a cutover is a direct migration of all your resources at once, as opposed to in batches during a staged migration. ![]() Staged Migration Vs Cutover Migration to Office 365 That’s the joy of hybrid: you can move mailboxes in and out of the cloud as you wish. It grants the freedom and capability to select which mailboxes to move into Office 365 and which ones to leave in the on-premises Exchange environment. I’ll talk a little more about the impact of your migration on end-users further on, as I know this is a big concern for most.Īnother benefit associated with the hybrid method, and why it’s a popular choice amongst Exchange admins, is its flexibility. It enables you to manage user accounts in both the on-premises and cloud environments with no end-user impact. This migration method is one of the more efficient, as it provides a smooth and continuous migration with minimal user downtime. The Office 365 migration hybrid method allows you to integrate your new Office 365 cloud environment with your current on-premises Exchange servers, including your existing directory services. Below, is an overview of the most common migration options to help you decide which is best suited for your company. ![]() For most IT admins migrating Exchange mailboxes to Office 365 is one of the most tricky and tiresome tasks they’re accountable for. An important decision to make is which type of Microsoft Office 365 migration is right for your business. ![]()
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