| Event Id | 178 |
| Source | MSExchangeMTA |
| Description | An error occurred while transferring in message because the directory name could not be expanded to an O/R address. An X.400 API Association (XAPIA) unable-to-transfer reason code and unrecognized-OR-name diagnostic code were returned. [MTA SUBMIT 17 73] (14) |
| Event Information | According to Microsoft : CAUSE This event occurs if the Directory Synchronization object does not have a valid X.400 address. RESOLUTION To resolve the problem: 1. Using the Exchange Server Administrator program, select the Exchange Server container, double-click the Directory Synchronization object, and then click the E-mail Addresses tab. 2. Type a valid X.400 address. |
| Reference Links | Event ID 178 During Directory Synchronization Event ID 178 while Synchronizing Exchange and MS Mail? |
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