Unable to delete items from mailbox / Unable to delete items from calendar.

If you encounter the following type of issue: a user is not able to delete items from his mailbox (emails or calendar items), please follow this article and apply the proper steps to solve it. Error message samples: Remote Server returned ‘554 5.2.0 STOREDRV.Deliver.Exception:QuotaExceededException.MapiExceptionShutoffQuotaExceeded; Failed to process message due to a permanent exception with message Move/Copy messages…

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How to purge a soft deleted mailbox in Office 365

We have recently changed the way, removing an Office 365 user with attached mailbox, behaves. Previously: If we deleted an active user while he was still licensed, his mailbox would go into a “soft deleted” state and could have been recovered, just by restoring the user. If we also purged the MsolUser from Office 365…

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