| Event Id | 4023 |
| Source | MSExchangeIMC |
| Description | Unable to start the Internet Mail Service because the work threads could not be initialized. |
| Event Information | According to Microsoft: CAUSE: This occurs when a bad message is trying to be delivered from the Imcdata\In queue to the information store. WORKAROUND: To work around this problem, move the messages from the Imcdata\In queue. Delete the Queue.dat file from the Imcdata folder, and then restart the information store and the Internet Mail Service. |
| Reference Links | XADM: Bad Message Causes Dr. Watson in Store.exe |
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