The third and final part of the Tenant to Tenant Migration series is about post-migration processing. In case you missed the first two parts, here is an overview of the content:
M365 - Exchange Online Center
ENow Software's Microsoft Exchange Online blog built by Microsoft MVPs for IT/Sys Admins.
Dominik Hoefling MVP
Dominik is a Microsoft MVP primarily specializing in Microsoft Exchange, Exchange Online and Office 365. Dominik currently works for a German consulting company, AtWork. At atwork, Dominik focuses on designing and building message infrastructures and cloud technologies. Dominik has worked in IT since 2004, primarily with Exchange Server but also has experience with Windows Server, Active Directory, Azure, Office 365, Unified Messaging and various third party products. You can follow Dominik via twitter (@DominikHoefling) or his blog www.dominikhoefling.com.
In Part 1 of this blog series, we went through the topics of how to discover identities, workloads, data, and security for your tenant to tenant migration project. Part 2 of this series covers the migration itself, like which workloads can be moved, what needs to be done to prepare for the migration, what data can be migrated, if there are any gotchas to expect, and public available PowerShell scripts that make your life a little bit easier.
What (Common) Workloads Can Be Moved
The most commonly used workloads might be Exchange Online, Teams, SharePoint Online, and OneDrive for Business. As in the Microsoft cosmos, the Exchange Mailbox should always be the first workload for migration because several other features rely on the mailbox itself. Also, email was the first workload that could have been migrated to Microsoft 365 and it is still the biggest one. Teams’ one-to-one chats are stored in the mailbox itself; documents and files will be stored in SharePoint Online. OneDrive for Business is a storage within the personal SharePoint Online site, so all of them work closely together.
Recipient Limits in Exchange Online
Microsoft has about 258 million paid seats for Office 365, The Verge reported in April 2020. As a “shared medium” for a lot of organizations around the globe, it should be clear that there must be limits in the Microsoft 365 ecosystem, e. g. message size limits or Teams member limits. In this blog we are covering recipient limits in Exchange Online.
Have you rad part 1 yet? This is a hefty topic, thus we had to break it up to two blogs. In part 1, Dominik Hoeffling goes over Outlook Mobile security basics, securing access to the service,securing the mobile client, and more!