Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
hikariseiko.co.jp
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-31 03:37:37 UTC · ↺ Refresh
MX Hostnames
- hikariseiko-co-jp.mail.protection.outlook.com
MX Priorities
- hikariseiko-co-jp.mail.protection.outlook.com: 1
A / AAAA Records
- 218.216.182.42 ↩ ns1.hikariseiko.co.jp
Mail Server IPs
- 52.101.157.11 ↩ mail-os0p286cu01203.inbound.protection.outlook.com
- 52.101.157.10 ↩ mail-os0p286cu01302.inbound.protection.outlook.com
- 52.101.157.40 ↩ mail-os9p286cu00100.inbound.protection.outlook.com
- 52.101.124.0 ↩ mail-tycp286cu02600.inbound.protection.outlook.com
- 2a01:111:f403:cc1f::1 ↩ mail-os0p286cu01201.inbound.protection.outlook.com
- 2a01:111:f403:cc24:: ↩ mail-os0p286cu01300.inbound.protection.outlook.com
- 2a01:111:f403:cc1a::2 ↩ mail-tyvp286cu00302.inbound.protection.outlook.com
- 2a01:111:f403:cc1f:: ↩ mail-os9p286cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns.hikariseiko.co.jp hostmaster.hikariseiko.co.jp 20260212 3600 900 1209600 3600
Primary NS (mname)
ns.hikariseiko.co.jp
Admin Email (rname)
hostmaster@hikariseiko.co.jp
Serial
20260212
Refresh
3600s
Retry
900s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns2.dc.ctc.ad.jp
ns1.hikariseiko.co.jp
ns.hikariseiko.co.jp
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; [email protected]; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- MS=ms10786266
- apple-domain-verification=CKJV10SuAitHk7OI
- SPFv=spf1 include:spf.protection.outlook.com -all
- google-site-verification=YjRqPmMY0usVZV6pmZhSSVdrKzSAWrlZ2lThlZwJ3-A
- sophos-domain-verification=e861372513e87542381d5fd9680700da05357d3b88d2f0c36528e14f687336ec
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