thanko.jp

Valid Email Server
Domain Lookup › thanko.jp

Domain Overview

DNS: ✓ 20d ago Checker: ✓ 20d ago
thanko.jp
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-21 08:21:54 UTC · ↺ Refresh

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MX Hostnames

  • smtp.google.com

MX Priorities

  • smtp.google.com: 10

A / AAAA Records

  • 35.77.238.240 ↩ ec2-35-77-238-240.ap-northeast-1.compute.amazonaws.com
  • 18.177.186.86

Mail Server IPs

  • 172.253.63.26 ↩ bi-in-f26.1e100.net
  • 172.253.63.27 ↩ bi-in-f27.1e100.net
  • 172.253.115.26 ↩ bg-in-f26.1e100.net
  • 172.253.115.27 ↩ bg-in-f27.1e100.net
  • 172.253.122.27 ↩ bh-in-f27.1e100.net
  • 2607:f8b0:4004:c06::1b ↩ bg-in-f27.1e100.net
  • 2607:f8b0:4004:c06::1a ↩ bg-in-f26.1e100.net
  • 2607:f8b0:4004:c09::1b ↩ bh-in-f27.1e100.net
  • 2607:f8b0:4004:c08::1b ↩ bi-in-f27.1e100.net

SOA Record

Raw SOA master.dns.ne.jp tech.sakura.ad.jp 2025052401 3600 900 3600000 3600
Primary NS (mname)
master.dns.ne.jp
Admin Email (rname)
tech@sakura.ad.jp
Serial
2025052401
Refresh
3600s
Retry
900s
Expire
3600000s
Minimum TTL
3600s

Nameservers (NS)

ns1.dns.ne.jp
ns2.dns.ne.jp

SPF Record

✓ Soft Fail (~all)
v=spf1 +mx include:spf.list-finder.jp include:spf.makeshop.jp include:spfgw.fsi.ne.jp include:_spf.google.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; aspf=r; adkim=r
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

DKIM Selectors

✓ 1 found
google._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: google

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

All TXT Records

2 records
  • google-site-verification=Rue5kyiuCmT1NclkD0XOiisrbHoSsFsKJfkcE1k9ZUE
  • SPFv=spf1 +mx include:spf.list-finder.jp include:spf.makeshop.jp include:spfgw.fsi.ne.jp include:_spf.google.com ~all
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