Another tough case of MAPI_E_FAILONEPROVIDER mailbox access error

This case is another one of those countless issues which reminds you every day that no matter how long you have been doing migrations you can never rest on an old knowledge and experience. Rather you need to keep learning something new which may at first appear same old, that’s a nature of our job 🙂

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How to migrate 3 TB of Public Folder data into Ex 2013 with QMM/DMM (Quest/Dell Migration Manager). Part 2: PF Move Requests

Part of PF migration challenge is that Exchange 2013 CU7 hierarchy mailboxes cannot exceed 100 GB as prescribed by Microsoft (https://technet.microsoft.com/en-us/library/dn594582(v=exchg.150).aspx) This is the absolute maximum, recommended size is actually half of that value: 50 GB. 

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