| Event Id | 150 |
| Source | MSExchangeMTA |
| Description | An error occurred while expanding a distribution list. The MTS-ID of the message is message ID. The reason code is error code. |
| Event Information | According to Microsoft: To change this behavior on a message-by-message basis: 1. Create a new message. 2. On the File menu, click Military Properties. 3. Click the Delivery tab. 4. Click to clear the Prohibit Send to DLs check box. |
| Reference Links | XCLN: Defense Message System Clients Cannot Send Mail to Distribution Lists |
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