SPF _spf.facebook.com

This seems to be a healthy SPF record
This SPF record has 0/10 terms that cause DNS queries

This is an approximate list of the IP addresses that the domain _spf.facebook.com allows email to be sent from according to their SPF record

facebook
66.220.144.128/25 (128 addresses)
66.220.155.0/24 (256 addresses)
66.220.157.0/25 (128 addresses)
69.63.178.128/25 (128 addresses)
69.63.181.0/24 (256 addresses)
69.63.184.0/25 (128 addresses)
69.171.232.0/24 (256 addresses)
69.171.244.0/23 (512 addresses)
QueryResponse
_spf.facebook.com TXT
 _spf.facebook.com TXTv=spf1 ip4:66.220.144.128/25 ip4:66.220.155.0/24 ip4:66.220.157.0/25 ip4:69.63.178.128/25 ip4:69.63.181.0/24 ip4:69.63.184.0/25 ip4:69.171.232.0/24 ip4:69.171.244.0/23 -all

Internal debug code. Here be dragons.

qcount => [
  {
    "param" => "_spf.facebook.com",
    "query" => "root",
    "record" => ""
  }
]

errors => [
  "0This seems to be a healthy SPF record",
  "0This SPF record has 0/10 terms that cause DNS queries"
]

record => {
  "facebook" => [
    "66.220.144.128/25",
    "66.220.155.0/24",
    "66.220.157.0/25",
    "69.63.178.128/25",
    "69.63.181.0/24",
    "69.63.184.0/25",
    "69.171.232.0/24",
    "69.171.244.0/23"
  ]
}

queries => [
  {
    "__" => "\201\303\201\200\0\1\0\1\0\0\0\0\4_spf\bfacebook\3com\0\0\20\0\1\300\f\0\20\0\1\0\0\16\20\0\256\177v=spf1 ip4:66.220.144.128/25 ip4:66.220.155.0/24 ip4:66.220.157.0/25 ip4:69.63.178.128/25 ip4:69.63.181.0/24 ip4:69.63.184.0/25- ip4:69.171.232.0/24 ip4:69.171.244.0/23 -all",
    "aa" => "",
    "ad" => "",
    "an" => [
      [
        "_spf.facebook.com",
        "txt",
        "in",
        3600,
        "v=spf1 ip4:66.220.144.128/25 ip4:66.220.155.0/24 ip4:66.220.157.0/25 ip4:69.63.178.128/25 ip4:69.63.181.0/24 ip4:69.63.184.0/25",
        " ip4:69.171.232.0/24 ip4:69.171.244.0/23 -all"
      ]
    ],
    "ar" => [],
    "cd" => "",
    "id" => 33219,
    "ns" => [],
    "op" => "query",
    "qd" => [
      [
        "_spf.facebook.com",
        "txt",
        "in"
      ]
    ],
    "qr" => 1,
    "ra" => 1,
    "rc" => "noerror",
    "rd" => 1,
    "tc" => ""
  }
]

ipsizes => {
  "66.220.144.128/25" => 128,
  "66.220.155.0/24" => 256,
  "66.220.157.0/25" => 128,
  "69.171.232.0/24" => 256,
  "69.171.244.0/23" => 512,
  "69.63.178.128/25" => 128,
  "69.63.181.0/24" => 256,
  "69.63.184.0/25" => 128
}