shogakukan.co.jp

Valid Email Server
Domain Lookup › shogakukan.co.jp

Domain Overview

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

Checked via [email protected] · 2026-03-18 17:22:33 UTC · ↺ Refresh

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MX Hostnames

  • mx.securemx.jp

MX Priorities

  • mx.securemx.jp: 5

A / AAAA Records

  • 210.236.234.22 (no PTR)

Mail Server IPs

  • 210.130.202.92 ↩ mx180b.securemx.jp
  • 210.130.202.96 ↩ mx114a.securemx.jp
  • 210.130.202.93 ↩ mx114b.securemx.jp
  • 210.130.202.99 ↩ mx180a.securemx.jp

SOA Record

Raw SOA ns-592.awsdns-10.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-592.awsdns-10.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-1071.awsdns-05.org
ns-1861.awsdns-40.co.uk
ns-243.awsdns-30.com
ns-592.awsdns-10.net

SPF Record

✓ Soft Fail (~all)
v=spf1 +ip4:210.146.37.66 +ip4:210.146.37.67 +ip4:221.186.157.202 +ip4:210.236.234.4 +ip4:210.236.234.5 +ip4:114.141.125.98 +ip4:114.141.125.99 include:u16873459.wl210.sendgrid.net include:spf.securemx.jp include:spf.repica.jp include:mail.zendesk.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1

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

All TXT Records

5 records
  • google-site-verification=HV3Em32L98-UoEePlWCwM_QSlcIPSyUudhbVBsZTdCY
  • iijid=9a3662cd1d30415b1cdb79282b6f8479
  • SPFv=spf1 +ip4:210.146.37.66 +ip4:210.146.37.67 +ip4:221.186.157.202 +ip4:210.236.234.4 +ip4:210.236.234.5 +ip4:114.141.125.98 +ip4:114.141.125.99 include:u16873459.wl210.sendgrid.net include:spf.securemx.jp include:spf.repica.jp include:mail.zendesk.com ~all
  • MS=ms87840738
  • d365mktkey=YVHsxtyGxXwdzy87nD4x6qnJy7syyVsrpdch6hOOsPAx
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