This is an approximate list of the IP addresses that the domain spfd.protection.outlook.com allows email to be sent from according to their SPF record
Query | Response | |
---|---|---|
spfd.protection.outlook.com TXT | ||
spfd.protection.outlook.com TXT | v=spf1 ip4:51.4.72.0/24 ip4:51.5.72.0/24 ip4:51.5.80.0/27 ip4:20.47.149.138/32 ip4:51.4.80.0/27 ip6:2a01:4180:4051:0800::/64 ip6:2a01:4180:4050:0800::/64 ip6:2a01:4180:4051:0400::/64 ip6:2a01:4180:4050:0400::/64 -all |
Internal debug code. Here be dragons.
qcount => [ { "param" => "spfd.protection.outlook.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 => { "outlook" => [ "20.47.149.138/32", "51.4.72.0/24", "51.4.80.0/27", "51.5.72.0/24", "51.5.80.0/27", "2a01:4180:4050:400::/64", "2a01:4180:4050:800::/64", "2a01:4180:4051:400::/64", "2a01:4180:4051:800::/64" ] } queries => [ { "__" => "\275\360\201\200\0\1\0\1\0\0\0\0\4spfd\nprotection\aoutlook\3com\0\0\20\0\1\300\f\0\20\0\1\0\0\2X\0\331\330v=spf1 ip4:51.4.72.0/24 ip4:51.5.72.0/24 ip4:51.5.80.0/27 ip4:20.47.149.138/32 ip4:51.4.80.0/27 ip6:2a01:4180:4051:0800::/64 ip6:2a01:4180:4050:0800::/64 ip6:2a01:4180:4051:0400::/64 ip6:2a01:4180:4050:0400::/64 -all", "aa" => "", "ad" => "", "an" => [ [ "spfd.protection.outlook.com", "txt", "in", 600, "v=spf1 ip4:51.4.72.0/24 ip4:51.5.72.0/24 ip4:51.5.80.0/27 ip4:20.47.149.138/32 ip4:51.4.80.0/27 ip6:2a01:4180:4051:0800::/64 ip6:2a01:4180:4050:0800::/64 ip6:2a01:4180:4051:0400::/64 ip6:2a01:4180:4050:0400::/64 -all" ] ], "ar" => [], "cd" => "", "id" => 48624, "ns" => [], "op" => "query", "qd" => [ [ "spfd.protection.outlook.com", "txt", "in" ] ], "qr" => 1, "ra" => 1, "rc" => "noerror", "rd" => 1, "tc" => "" } ] ipsizes => { "20.47.149.138/32" => 1, "51.4.72.0/24" => 256, "51.4.80.0/27" => 32, "51.5.72.0/24" => 256, "51.5.80.0/27" => 32 }