tktk.co.jp

Valid Email Server
Domain Lookup › tktk.co.jp

Domain Overview

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

Checked via [email protected] · 2026-03-23 10:01:12 UTC · ↺ Refresh

MX Hostnames

  • tktk-co-jp.mail.protection.outlook.com

MX Priorities

  • tktk-co-jp.mail.protection.outlook.com: 10

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 52.101.124.0 ↩ mail-tycp286cu02600.inbound.protection.outlook.com
  • 52.101.157.40 ↩ mail-os9p286cu00100.inbound.protection.outlook.com
  • 52.101.157.11 ↩ mail-os0p286cu01203.inbound.protection.outlook.com
  • 52.101.157.10 ↩ mail-os0p286cu01302.inbound.protection.outlook.com
  • 2a01:111:f403:cc1f:: ↩ mail-os9p286cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:cc1a::2 ↩ mail-tyvp286cu00302.inbound.protection.outlook.com
  • 2a01:111:f403:cc1f::1 ↩ mail-os0p286cu01201.inbound.protection.outlook.com
  • 2a01:111:f403:cc1a::1 ↩ mail-ty3p286cu00101.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.tktk.co.jp tateno\.hiroaki.tktk.co.jp 20260304 7200 4800 604800 3600
Primary NS (mname)
ns1.tktk.co.jp
Admin Email (rname)
tateno\@hiroaki.tktk.co.jp
Serial
20260304
Refresh
7200s
Retry
4800s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns1.tktk.co.jp
dns4.dion.ne.jp

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.playbackmail.com include:spf.protection.outlook.com include:smtp.tktk.co.jp include:share13.precs.jp include:treasuremail.jp include:k-crm.jp include:sender.zcsend.jp ~all
📊 DNS lookups: 7/10
~ 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

✗ 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

4 records
  • google-site-verification=SEetY_Lxhb7LHI1vhC4k-LetejofbbNawhQge10aVzI
  • SPFv=spf1 include:spf.playbackmail.com include:spf.protection.outlook.com include:smtp.tktk.co.jp include:share13.precs.jp include:treasuremail.jp include:k-crm.jp include:sender.zcsend.jp ~all
  • MS=ms71832473
  • apple-domain-verification=trKsxQ8GJy4wInM8
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