NM: Error: Failed to open document: (582) You are not authorized to perform that operation (4331818)

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NM: Error: Failed to open document: (582) You are not authorized to perform that operation
Description

NM: Error: Failed to open document: (582) You are not authorized to perform that operation
Resolution

Issue

We see the following errors throughout the migration log. We can open the user's mail file from the migration workstation, what is causing this error?

! Error: Failed to open document: (582) You are not authorized to perform that operation
! Error: MIMEConvertCDParts error 582

Solution

Check the source mail file Access Control List (ACL). Change the Migration user (or group) permissions to Manager.

Retry the migration.

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