MAPI or an unspecified service provider. ID no: 00000000-0000-00000000

When you want to import a mailbox you get some times the following error:

MAPI or an unspecified service provider. ID no: 00000000-0000-00000000
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Solution is very easy: Give yoursell full access rights to a mailbox Smile

Add-MailboxPermission -identity "user" -Accessrights FULLACCESS -User "yourusername"

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