| Order | List | Examines | Action taken if match is found |
| 1 | System white list | Sender address, Client IP | Accept message |
| 2 | System black list | Sender address, Client IP | Invoke black list action |
| 3 | Domain white list | Sender address, Client IP | Accept message |
| 4 | Domain black list | Sender address, Client IP | Invoke black list action |
| 5 | Session recipient white list | Recipient address | Accept message for matching recipients |
| 6 | Session recipient black list | Recipient address | Invoke black list action |
| 7 | Session sender white list | Sender address, Client IP | Accept message for all recipients |
| 8 | Session sender black list | Sender address, Client IP | Invoke black list action |
| 9 | User white list | Sender address, Client IP | Accept message for this recipient |
| 10 | User black list | Sender address, Client IP | Discard message |
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