1. whois
spf.sender.xserver.jp. 60 IN TXT "v=spf1 include:_spf.sender4.xserver.jp include:_spf.sender5.xserver.jp ~all" _spf.sender4.xserver.jp. 95 IN TXT "v=spf1 +ip4:183.181.94.185 +ip4:183.181.94.186 +ip4:183.181.94.187 +ip4:183.181.94.188 +ip4:183.181.99.207 +ip4:183.181.99.206 +ip4:183.181.99.208 +ip4:183.181.94.252 +ip4:183.90.235.194 +ip4:183.90.235.195 ~all" _spf.sender5.xserver.jp. 1873 IN TXT "v=spf1 +ip4:183.90.235.196 +ip4:183.90.235.197 +ip4:183.90.235.198 +ip4:183.90.235.199 +ip4:183.90.235.200 ~all"