Skip to main content

A Python module and command line parser for SPF and DMARC records

Project description

Build Status

A Python module and command line utility for validating SPF and DMARC DNS records

usage: checkdmarc [-h] [-d] [-f FORMAT] [-o OUTPUT]
              [-n NAMESERVER [NAMESERVER ...]] [-t TIMEOUT] [-v]
              [-w WAIT]
              domain [domain ...]

Validates and parses SPF amd DMARC DNS records

positional arguments:
  domain                one or ore domains, or a single path to a file
                        containing a list of domains

optional arguments:
  -h, --help            show this help message and exit
  -d, --descriptions    include descriptions of DMARC tags in the JSON output
  -f FORMAT, --format FORMAT
                        specify JSON or CSV output format
  -o OUTPUT, --output OUTPUT
                        output to a file path rather than printing to the
                        screen
  -n NAMESERVER [NAMESERVER ...], --nameserver NAMESERVER [NAMESERVER ...]
                        nameservers to query
  -t TIMEOUT, --timeout TIMEOUT
                        number of seconds to wait for an answer from DNS
                        (default 6.0)
  -v, --version         show program's version number and exit
  -w WAIT, --wait WAIT  number os seconds to wait between processing domains
                        (default 0.0)
$ checkdmarc fbi.gov
{
  "domain": "accenture.com",
  "base_domain": "accenture.com",
  "mx": {
    "hosts": [
      {
        "preference": 10,
        "hostname": "mx0a-001dcc01.pphosted.com",
        "addresses": [
          "148.163.157.10"
        ]
      },
      {
        "preference": 10,
        "hostname": "mx0b-001dcc01.pphosted.com",
        "addresses": [
          "148.163.159.10"
        ]
      }
    ],
    "warnings": []
  },
  "spf": {
    "record": "v=spf1 mx ip4:170.252.46.0/28 ip4:170.252.248.64/27 ip4:170.252.43.192/26 ip4:170.252.38.64/26 ip4:67.231.157.136 ip4:67.231.149.140 ip4:204.90.21.128 ip4:204.90.21.132 ip4:204.90.21.133 ip4:204.90.21.134 ip4:96.65.150.125 ip4:67.192.21.185 ip4:91.209.134.59 ip4:91.209.134.60 ip4:194.224.177.201 ip4:217.130.124.201 ip4:207.254.213.9 ip4:216.130.131.68 ip4:199.255.204.5 ip4:192.104.67.6 ip4:192.104.67.3 ip4:216.244.121.94 ip4:64.21.54.41 include:spf.protection.outlook.com -all",
    "valid": true,
    "dns_lookups": 4,
    "warnings": [],
    "parsed": {
      "pass": [
        {
          "value": "mx0a-001dcc01.pphosted.com",
          "mechanism": "mx"
        },
        {
          "value": "mx0b-001dcc01.pphosted.com",
          "mechanism": "mx"
        },
        {
          "value": "170.252.46.0/28",
          "mechanism": "ip4"
        },
        {
          "value": "170.252.248.64/27",
          "mechanism": "ip4"
        },
        {
          "value": "170.252.43.192/26",
          "mechanism": "ip4"
        },
        {
          "value": "170.252.38.64/26",
          "mechanism": "ip4"
        },
        {
          "value": "67.231.157.136",
          "mechanism": "ip4"
        },
        {
          "value": "67.231.149.140",
          "mechanism": "ip4"
        },
        {
          "value": "204.90.21.128",
          "mechanism": "ip4"
        },
        {
          "value": "204.90.21.132",
          "mechanism": "ip4"
        },
        {
          "value": "204.90.21.133",
          "mechanism": "ip4"
        },
        {
          "value": "204.90.21.134",
          "mechanism": "ip4"
        },
        {
          "value": "96.65.150.125",
          "mechanism": "ip4"
        },
        {
          "value": "67.192.21.185",
          "mechanism": "ip4"
        },
        {
          "value": "91.209.134.59",
          "mechanism": "ip4"
        },
        {
          "value": "91.209.134.60",
          "mechanism": "ip4"
        },
        {
          "value": "194.224.177.201",
          "mechanism": "ip4"
        },
        {
          "value": "217.130.124.201",
          "mechanism": "ip4"
        },
        {
          "value": "207.254.213.9",
          "mechanism": "ip4"
        },
        {
          "value": "216.130.131.68",
          "mechanism": "ip4"
        },
        {
          "value": "199.255.204.5",
          "mechanism": "ip4"
        },
        {
          "value": "192.104.67.6",
          "mechanism": "ip4"
        },
        {
          "value": "192.104.67.3",
          "mechanism": "ip4"
        },
        {
          "value": "216.244.121.94",
          "mechanism": "ip4"
        },
        {
          "value": "64.21.54.41",
          "mechanism": "ip4"
        }
      ],
      "neutral": [],
      "softfail": [],
      "fail": [],
      "include": [
        {
          "domain": "spf.protection.outlook.com",
          "record": "v=spf1 ip4:207.46.100.0/24 ip4:207.46.163.0/24 ip4:65.55.169.0/24 ip4:157.56.110.0/23 ip4:157.55.234.0/24 ip4:213.199.154.0/24 ip4:213.199.180.128/26 include:spfa.protection.outlook.com -all",
          "dns_lookups": 2,
          "parsed": {
            "pass": [
              {
                "value": "207.46.100.0/24",
                "mechanism": "ip4"
              },
              {
                "value": "207.46.163.0/24",
                "mechanism": "ip4"
              },
              {
                "value": "65.55.169.0/24",
                "mechanism": "ip4"
              },
              {
                "value": "157.56.110.0/23",
                "mechanism": "ip4"
              },
              {
                "value": "157.55.234.0/24",
                "mechanism": "ip4"
              },
              {
                "value": "213.199.154.0/24",
                "mechanism": "ip4"
              },
              {
                "value": "213.199.180.128/26",
                "mechanism": "ip4"
              }
            ],
            "neutral": [],
            "softfail": [],
            "fail": [],
            "include": [
              {
                "domain": "spfa.protection.outlook.com",
                "record": "v=spf1 ip4:157.56.112.0/24 ip4:207.46.51.64/26 ip4:64.4.22.64/26 ip4:40.92.0.0/14 ip4:40.107.0.0/17 ip4:40.107.128.0/17 ip4:134.170.140.0/24 include:spfb.protection.outlook.com ip6:2001:489a:2202::/48 -all",
                "dns_lookups": 1,
                "parsed": {
                  "pass": [
                    {
                      "value": "157.56.112.0/24",
                      "mechanism": "ip4"
                    },
                    {
                      "value": "207.46.51.64/26",
                      "mechanism": "ip4"
                    },
                    {
                      "value": "64.4.22.64/26",
                      "mechanism": "ip4"
                    },
                    {
                      "value": "40.92.0.0/14",
                      "mechanism": "ip4"
                    },
                    {
                      "value": "40.107.0.0/17",
                      "mechanism": "ip4"
                    },
                    {
                      "value": "40.107.128.0/17",
                      "mechanism": "ip4"
                    },
                    {
                      "value": "134.170.140.0/24",
                      "mechanism": "ip4"
                    },
                    {
                      "value": "2001:489a:2202::/48",
                      "mechanism": "ip6"
                    }
                  ],
                  "neutral": [],
                  "softfail": [],
                  "fail": [],
                  "include": [
                    {
                      "domain": "spfb.protection.outlook.com",
                      "record": "v=spf1 ip6:2a01:111:f400::/48 ip4:23.103.128.0/19 ip4:23.103.198.0/23 ip4:65.55.88.0/24 ip4:104.47.0.0/17 ip4:23.103.200.0/21 ip4:23.103.208.0/21 ip4:23.103.191.0/24 ip4:216.32.180.0/23 ip4:94.245.120.64/26 -all",
                      "dns_lookups": 0,
                      "parsed": {
                        "pass": [
                          {
                            "value": "2a01:111:f400::/48",
                            "mechanism": "ip6"
                          },
                          {
                            "value": "23.103.128.0/19",
                            "mechanism": "ip4"
                          },
                          {
                            "value": "23.103.198.0/23",
                            "mechanism": "ip4"
                          },
                          {
                            "value": "65.55.88.0/24",
                            "mechanism": "ip4"
                          },
                          {
                            "value": "104.47.0.0/17",
                            "mechanism": "ip4"
                          },
                          {
                            "value": "23.103.200.0/21",
                            "mechanism": "ip4"
                          },
                          {
                            "value": "23.103.208.0/21",
                            "mechanism": "ip4"
                          },
                          {
                            "value": "23.103.191.0/24",
                            "mechanism": "ip4"
                          },
                          {
                            "value": "216.32.180.0/23",
                            "mechanism": "ip4"
                          },
                          {
                            "value": "94.245.120.64/26",
                            "mechanism": "ip4"
                          }
                        ],
                        "neutral": [],
                        "softfail": [],
                        "fail": [],
                        "include": [],
                        "redirect": null,
                        "exp": null,
                        "all": "fail"
                      },
                      "warnings": []
                    }
                  ],
                  "redirect": null,
                  "exp": null,
                  "all": "fail"
                },
                "warnings": []
              }
            ],
            "redirect": null,
            "exp": null,
            "all": "fail"
          },
          "warnings": []
        }
      ],
      "redirect": null,
      "exp": null,
      "all": "fail"
    }
  },
  "dmarc": {
    "record": "v=DMARC1;p=none;fo=1;rua=mailto:dmarc_rua@emaildefense.proofpoint.com;ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com",
    "valid": true,
    "location": "accenture.com",
    "tags": {
      "v": {
        "value": "DMARC1",
        "explicit": true
      },
      "p": {
        "value": "none",
        "explicit": true
      },
      "fo": {
        "value": [
          "1"
        ],
        "explicit": true
      },
      "rua": {
        "value": [
          {
            "scheme": "mailto",
            "address": "dmarc_rua@emaildefense.proofpoint.com",
            "size_limit": null
          }
        ],
        "explicit": true
      },
      "ruf": {
        "value": [
          {
            "scheme": "mailto",
            "address": "dmarc_ruf@emaildefense.proofpoint.com",
            "size_limit": null
          }
        ],
        "explicit": true
      },
      "adkim": {
        "value": "r",
        "explicit": false
      },
      "aspf": {
        "value": "r",
        "explicit": false
      },
      "pct": {
        "value": 100,
        "explicit": false
      },
      "rf": {
        "value": [
          "afrf"
        ],
        "explicit": false
      },
      "ri": {
        "value": 86400,
        "explicit": false
      },
      "sp": {
        "value": "none",
        "explicit": false
      }
    },
    "warnings": []
  }
}

Installation

checkdmarc requires Python 3.

On Debian or Ubuntu systems, run:

$ sudo apt-get install python3-pip

Python 3 installers for Windows and macOS can be found at https://www.python.org/downloads/

To install or upgrade to the latest stable release of checkdmarc on macOS or Linux, run

$ sudo -H pip3 install -U checkdmarc

Or, install the latest development release directly from GitHub:

$ sudo -H pip3 install -U git+https://github.com/domainaware/checkdmarc.git

Documentation

https://domainaware.github.io/checkdmarc

Bug reports

Please report bugs on the GitHub issue tracker

https://github.com/domainaware/checkdmarc/issues

Project details


Release history Release notifications | RSS feed

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distributions

No source distribution files available for this release.See tutorial on generating distribution archives.

Built Distribution

checkdmarc-2.1.1-py3-none-any.whl (20.1 kB view details)

Uploaded Python 3

File details

Details for the file checkdmarc-2.1.1-py3-none-any.whl.

File metadata

File hashes

Hashes for checkdmarc-2.1.1-py3-none-any.whl
Algorithm Hash digest
SHA256 e932028ea20eb7f32dd010a2d6e8638c24793fc819a7426b2e828bd966331c78
MD5 40b79a736e5e082ae1d9c03bcd64b082
BLAKE2b-256 2907a0b2ae1c17f0517a51934743994484e038d8b51693246231ed6820e2e539

See more details on using hashes here.

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page