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Saturday, August 23, 2014

Migrating a mailbox from Exchange 2007/2010 to Exchange 2013 fails with: “Error: MigrationPermanentException: Active Directory property ‎'homeMDB‎' is not writeable on recipient…”

Problem

You are attempting to migrate Exchange 2007 or 2010 mailboxes to a new Exchange 2013 environment but notice a few mailboxes have failed with the following error message:

Data migrated: 
Migration rate: 
Error: MigrationPermanentException: Active Directory property ‎'homeMDB‎' is not writeable on recipient ‎'domain.local/IT Department/Gary Black‎'. --> Active Directory property ‎'homeMDB‎' is not writeable on recipient ‎'domain.local/IT Department/Gary Black‎'.

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Solution

One of the reasons why this error would be thrown is if the user object’s security permissions have inheritance disabled:

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Enabling inheritance for the user object and re-initiating the migration of the problematic mailbox will correct the issue:

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