https://x.com/seaforce_co/status/1758415152230343124?s=20
SPF設定, PTR OK
- DKIM, DMARC no TLS no
1. whois
Return-Path: <system@smoothcontact.jp>
Received: from 123.static.digitalstage.jp (HELO www.smoothcontact.jp) (210.131.150.123)
by conoha.qmail.jp with SMTP; 16 Feb 2024 10:13:52 -0000
From: シーフォース株式会社 <info@seaforce.co.jp>
Reply-To: info@seaforce.co.jp
2. history
smoothcontact.jp. 600 IN TXT "v=spf1 a mx ip4:210.131.150.0/24 ip4:122.219.43.128/28 ip4:122.219.43.224/29 ip4:122.219.45.224/27 ip4:122.219.40.0/27 ~all" seaforce.co.jp. 600 IN TXT "v=spf1 include:spf.protection.outlook.com -all" 123.150.131.210.in-addr.arpa. 86400 IN PTR 123.static.digitalstage.jp.