shintokyo.co.jp

Valid Email Server
Domain Lookup › shintokyo.co.jp

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
shintokyo.co.jp
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-23 15:21:08 UTC · ↺ Refresh

MX Hostnames

  • mail.shintokyo.co.jp

MX Priorities

  • mail.shintokyo.co.jp: 10

A / AAAA Records

  • 183.181.85.127 ↩ sv8766.xserver.jp

Mail Server IPs

  • 49.212.121.167 ↩ 167.121.212.49.static.www3739m.sakura.ne.jp

SOA Record

Raw SOA dns1.sys.jpdirect.jp root.shintokyo.co.jp 1758686863 3600 900 604800 10800
Primary NS (mname)
dns1.sys.jpdirect.jp
Admin Email (rname)
root@shintokyo.co.jp
Serial
1758686863
Refresh
3600s
Retry
900s
Expire
604800s
Minimum TTL
10800s

Nameservers (NS)

dns1.sys.jpdirect.jp
dns3.sys.jpdirect.jp
dns2.sys.jpdirect.jp

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:49.212.121.0/24 a:shin-tokyo.sakura.ne.jp a:www3739m.sakura.ne.jp include:spf.protection.outlook.com mx ~all
📊 DNS lookups: 4/10
~ 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 ip4:49.212.121.0/24 a:shin-tokyo.sakura.ne.jp a:www3739m.sakura.ne.jp include:spf.protection.outlook.com mx ~all
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