Moving mailboxes from exchange server 2010 to 2016.
Exchange mailbox migration.
The exchange admin center in office 365 is used to migrate data from a hosted and on premises exchange environment or an imap environment through the creation and management of migration batches.
Batch migration involves the use of a csv file containing both the source and target details like username address password etc.
To be able to create batches of mailboxes to migrate we need to define the url for the mrs proxy within exchange online.
Edbmails exchange to office 365 migration is a process in which email messages are migrated from on premise exchange mailboxes to office 365 tenant users.
We can see in the screenshot below that there are 2 archive mailboxes provisioned.
After migrating the mailbox to exchange online connect to exchange online powershell and run the following command to retrieve the guids of the archive mailboxes.
Get mailbox user select expandproperty mailboxlocations.
We ll see the mailbox migration using both exchange admin center eac exchange management shell ems moving the mailboxes within the forest is called local move and moving mailbox from one forest to another is called cross forest migration.
If you synchronize mailboxes a week before the date you plan to switch users to exchange online then the only point that users will see any change is the point that you complete the migration batch.
Normally this is an internal exchange mailbox move mechanism but for office 365 the hybrid wizard enables the mrs proxy within the exchange web services virtual directory.
Estimated time to complete.
There are three types of email migrations that can be made from an exchange server.
Open exchange admin center eac.
Moves in on premises exchange organizations.
You can migrate entire mailboxes and its items like e mails appointments contacts or tasks etc to the destination server.
Migration batches are specific requests to migrate all mailboxes or a subset of mailboxes from a remote.
Batch migration of mailboxes using exchange admin center.
For migrations from an existing on premises exchange server environment an administrator can migrate all email calendar and contacts from user mailboxes to microsoft 365 or office 365.
The initial sync and subsequent delta syncs are all performed in the background and because exchange processes move requests at low priority mailbox moves in the background don t affect user.
Migrate mailboxes from exchange server.
This allows remote moves.
The priasoft mailbox migration manager a core component of the priasoft migration suite for exchange is a powerful migration and monitoring application and the engine that drives predictable safe and seamless migrations.