tetsuzo.jp

Valid Email Server
Domain Lookup › tetsuzo.jp

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
tetsuzo.jp
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-23 05:11:28 UTC · ↺ Refresh

MX Hostnames

  • tetsuzo.jp

MX Priorities

  • tetsuzo.jp: 10

A / AAAA Records

  • 160.251.151.130 ↩ s307.xrea.com

Mail Server IPs

  • 160.251.151.130 ↩ s307.xrea.com

SOA Record

Raw SOA ns1.value-domain.com hostmaster.tetsuzo.jp 2020082619 3600 900 604800 120
Primary NS (mname)
ns1.value-domain.com
Admin Email (rname)
hostmaster@tetsuzo.jp
Serial
2020082619
Refresh
3600s
Retry
900s
Expire
604800s
Minimum TTL
120s

Nameservers (NS)

ns2.value-domain.com
ns1.value-domain.com

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:160.251.151.130 ~all
📊 DNS lookups: 0/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

1 record
  • SPFv=spf1 ip4:160.251.151.130 ~all
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