| Details | |
| Product: | Exchange |
| Event ID: | 136 |
| Source: | MSExchangeMTA |
| Version: | 6.0 |
| Component: | Message Transfer Agent |
| Symbolic Name: | MTA00136 |
| Message: | The object class in the directory service is not valid for the {object name} object. Call Microsoft Technical Support. (12) |
| Explanation | |
| A directory object may have been incorrectly imported during directory import or may have been changed while the administrator was in raw mode. | |
| User Action | |
| Contact Microsoft Product Support Services for assistance. | |