https://twitter.com/moeama/status/1553926595424858112?s=20&t=gyVOXHoeSuJ36R6cBqx2rw
SPF設定はなくてもいいのか。
1. whois
Domain Name: MOEAMA.NET Registry Domain ID: 426649739_DOMAIN_NET-VRSN Registrar WHOIS Server: whois.google.com Registrar URL: http://domains.google.com Updated Date: 2022-08-01T02:11:16Z Creation Date: 2006-04-26T15:03:34Z Registry Expiry Date: 2025-04-26T15:03:34Z Registrar: Google LLC Registrar IANA ID: 895 Registrar Abuse Contact Email: registrar-abuse@google.com Registrar Abuse Contact Phone: +1.8772376466 Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited Name Server: NS-CLOUD-D1.GOOGLEDOMAINS.COM Name Server: NS-CLOUD-D2.GOOGLEDOMAINS.COM Name Server: NS-CLOUD-D3.GOOGLEDOMAINS.COM Name Server: NS-CLOUD-D4.GOOGLEDOMAINS.COM DNSSEC: unsigned URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/ >>> Last update of whois database: 2022-08-01T04:50:05Z <<<
2. history
メールの不調はかなり怪しい（突発的に送れなくなる感じぽい）ので不穏だ....
ns-cloud-d1.googledomains.com
ns-cloud-d2.googledomains.com
ns-cloud-d3.googledomains.com
ns-cloud-d4.googledomains.com
Google LLC
2022-04-25 (3 months) 2022-08-01 (today) 3 months
dns01.muumuu-domain.com
dns02.muumuu-domain.com
IDC Frontier Inc.
2018-04-30 (4 years) 2022-04-25 (3 months) 4 years