| Details | |
| Product: | Exchange |
| Event ID: | 202 |
| Source: | MSExchangeMTA |
| Version: | 6.5.6940.0 |
| Component: | Microsoft Exchange Message Transfer Agent |
| Message: | Unable to transfer in message <message id> because an unsupported extension was detected. A non-delivery report has been generated with reason code <error code> and diagnostic code <error code>. Contact Microsoft Technical Support. [<value> <value> <value> <value>] (14) |
| Explanation | |
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This event occurs when a message is received from another message transfer agent (MTA) and the message contains an extension to the X.400 standards that the Microsoft Exchange Server MTA does not recognize. |
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| User Action | |
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Contact Microsoft Product Support Services. |
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