Migrating only users from Source to Target, leaving Exchange mailboxes on Source.

I am Migrating only Users from Source to Target (MMAD), leaving Exchange mailboxes on Source.

What "Specify Exchange Options" should I select under Synchronization Properties?

-Users without mail options

-Mail-enabled users

-Mail-enabled users for native Move

-Mailbox-enabled users

I just want the Users, after migration to Target Domain to be able to access their mailboxes.

Should I disabled their Source User IDs or would that disabled the mailbox.

Thank you,

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  • Here are some additonal things to keep in mind.   Disabling the source user will actually create a linked mailbox, not disable access to it.  The Exchange Processing Wizard will  need to be ran post migration if you do change them to linked mailboxes at the end of the migration, before removing sidhistory. Without sidhistory, you will need to process all mailboxes and PF with each nightly batch of migrations.

    Are you currently working with a Partner or Services Professional?