Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
kaisoten.co.jp
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-02 01:30:42 UTC · ↺ Refresh
MX Hostnames
- kaisoten-co-jp.mail.protection.outlook.com
MX Priorities
- kaisoten-co-jp.mail.protection.outlook.com: 0
A / AAAA Records
- 52.223.58.85 ↩ aa4bd4732783d7cd8.awsglobalaccelerator.com
- 76.223.86.212 ↩ aa4bd4732783d7cd8.awsglobalaccelerator.com
Mail Server IPs
- 52.101.124.5 ↩ mail-tyvp286cu00305.inbound.protection.outlook.com
- 52.101.124.0 ↩ mail-tycp286cu02600.inbound.protection.outlook.com
- 52.101.124.1 ↩ mail-ty3p286cu00101.inbound.protection.outlook.com
- 52.101.157.11 ↩ mail-os0p286cu01203.inbound.protection.outlook.com
- 2a01:111:f403:cc1a:: ↩ mail-tycp286cu02600.inbound.protection.outlook.com
- 2a01:111:f403:cc1a::3 ↩ mail-tyvp286cu00203.inbound.protection.outlook.com
- 2a01:111:f403:cc24:: ↩ mail-os0p286cu01300.inbound.protection.outlook.com
- 2a01:111:f403:cc1a::2 ↩ mail-tyvp286cu00302.inbound.protection.outlook.com
SOA Record
Raw SOA
ns6-tk01.ocn.ad.jp root.ocn.ad.jp 2026020201 300 150 3600 300
Primary NS (mname)
ns6-tk01.ocn.ad.jp
Admin Email (rname)
root@ocn.ad.jp
Serial
2026020201
Refresh
300s
Retry
150s
Expire
3600s
Minimum TTL
300s
Nameservers (NS)
ns6-tk01.ocn.ad.jp
ns6-tk02.ocn.ad.jp
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com +ip4:125.206.232.72/29 ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo 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
7 records- google-site-verification=jIouBGN_0xHMcOeAPcirsB300eNzWWYYjItL4KnzLBk
- google-site-verification=9ClJh0WTnzN3DQNf0sqxiB3ryqF_0McRu8e5tV1r7YE
- google-site-verification=M1JFDQzFdr3t2tgqDd4y9_JtpHETXh2KazcKWuoG9nc
- google-site-verification=tfoRajuTnrWlpWoS6gUg3SvfZaWzqtXCrg-yTfAeQrU
- MS=ms41455009
- SPFv=spf1 include:spf.protection.outlook.com +ip4:125.206.232.72/29 ~all
- google-site-verification=OcGqKzQOl2adKgUj48CWt3mdpSyfRXQE9WY4YeqYXpM
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site · Customize →
See demo & docs
Deep verification
Full email verification for kaisoten.co.jp
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits