> ## Documentation Index
> Fetch the complete documentation index at: https://docs.abusix.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Return Codes

> A reference guide to all Guardian Mail return codes, mapping DNSBL responses to their corresponding threat lists and data types for accurate interpretation and filtering.

Here is a list of all the possible return codes from Guardian Mail:

| **Return Code** | **List**                                                          | **Type**                                                             |
| :-------------- | :---------------------------------------------------------------- | :------------------------------------------------------------------- |
| 127.0.0.2       | black                                                             | [IP](https://abusix.com/glossary/internet-protocol-address/)         |
| 127.0.0.200     | black (manual listings)                                           | [IP](https://abusix.com/glossary/internet-protocol-address/)         |
| 127.0.0.3       | black (composite/heuristic)                                       | [IP](https://abusix.com/glossary/internet-protocol-address/)         |
| 127.0.0.4       | exploit authbl                                                    | [IP](https://abusix.com/glossary/internet-protocol-address/)         |
| 127.0.0.5       | forged                                                            | [IP](https://abusix.com/glossary/internet-protocol-address/) (Beta)  |
| 127.0.0.6       | blackscatter                                                      | [IP](https://abusix.com/glossary/internet-protocol-address/) (Beta)  |
| 127.0.0.11      | policy (generic [rDNS](https://abusix.com/glossary/reverse-dns/)) | [IP](https://abusix.com/glossary/internet-protocol-address/)         |
| 127.0.0.12      | policy (missing [rDNS](https://abusix.com/glossary/reverse-dns/)) | [IP](https://abusix.com/glossary/internet-protocol-address/)         |
| 127.0.0.100     | noip                                                              | [IP](https://abusix.com/glossary/internet-protocol-address/) (Beta)  |
| 127.0.1.1       | dblack                                                            | Domain                                                               |
| 127.0.1.2       | dblack (Newly Observed Domain)                                    | Domain                                                               |
| 127.0.1.3       | dblack (Unshortened)                                              | Domain                                                               |
| 127.0.2.1       | white                                                             | [IP](https://abusix.com/glossary/internet-protocol-address/), Domain |
| 127.0.3.1       | shorthash                                                         | Hash                                                                 |
| 127.0.3.2       | diskhash                                                          | Hash                                                                 |
| 127.0.4.1       | btc-wallets                                                       | Hash (Beta)                                                          |
| 127.0.5.1       | attachhash                                                        | Hash (Beta)                                                          |

## **Learn more about Guardian Mail**

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