| Event Id | 1203 |
| Source | MSExchangeIS |
| Description | Failed to delete the mailbox of |
| Event Information | The mailbox is locked or an attempt to delete a nonexistent mailbox was made. Try deleting the mailbox again. |
| Reference Links | Microsoft product: Exchange Version: 6.5.6940.0 Event Source: MSExchangeIS Event ID: 1203 |
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