1. whois
[Domain Name] F2FF.JP [登録者名] 株式会社ナノオプト・メディア [Registrant] NANO OPT Media, Inc. [Name Server] dns-t01.nlrs.jp [Name Server] dns-t02.nlrs.jp [Name Server] dns-t50.nlrs.jp [Signing Key] [登録年月日] 2009/08/03 [有効期限] 2024/08/31 [状態] Active [ロック状態] DomainTransferLocked [ロック状態] AgentChangeLocked [最終更新] 2023/11/12 08:06:07 (JST)
f2ff.jp. 14400 IN TXT "v=spf1 +a +mx +ip4:103.37.10.0/24 +ip4:118.238.221.10 +ip4:118.238.0.128/29 +ip4:160.16.103.66 +ip4:219.94.248.36 +ip6:2403:3a00:202:1105:219:94:248:36 +ip4:202.208.196.167 +a:mail.sansan.com +include:_spf.google.com +include:spf.curumeru.jp +include:mai" "lgun.org +include:24055967.spf10.hubspotemail.net +ip6:2403:1f00:0:2:20c:29ff:fe60:8506 ~all"
DNS lookup count in your SPF record (12) exceeds the maximum limit of 10. This will result in a "permerror" and SPF authentication failure. Please use our EasySPF tool to optimize your SPF record and reduce the DNS lookup count.
2. history
f2ff.jp. 86400 IN NS dns-t02.nlrs.jp. f2ff.jp. 86400 IN NS dns-t01.nlrs.jp.