SPF Lookup SPF Generator SPF Raw Checker Domain where SPF will be published Domain An SPF record that you wish to validate before publishing on your DNS Raw Record v=spf1 include:_spf.mailrelay.rrpproxy.net include:spf.protection.outlook.com ip4:93.89.230.0/24 ip4:52.8.140.255 ip4:35.169.47.31 ip4:18.217.82.134 ip4:54.164.132.26 ip4:35.157.197.205 ip4:3.120.8.62 -all Check the record