tmtc.co.jp

Valid Email Server
Domain Lookup › tmtc.co.jp

Domain Overview

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

Checked via [email protected] · 2026-03-29 16:52:19 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

  • tmtc-co-jp.mail.protection.outlook.com: 0

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 52.101.124.1 ↩ mail-ty3p286cu00101.inbound.protection.outlook.com
  • 52.101.157.11 ↩ mail-os0p286cu01203.inbound.protection.outlook.com
  • 52.101.124.5 ↩ mail-tyvp286cu00305.inbound.protection.outlook.com
  • 52.101.157.10 ↩ mail-os0p286cu01302.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
  • 2a01:111:f403:cc1a::2 ↩ mail-tyvp286cu00302.inbound.protection.outlook.com
  • 2a01:111:f403:cc1f:: ↩ mail-os9p286cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA skydns99.otsuka-office365.jp hostmaster.otsuka-office365.jp 2023061201 10800 3600 604800 1800
Primary NS (mname)
skydns99.otsuka-office365.jp
Admin Email (rname)
hostmaster@otsuka-office365.jp
Serial
2023061201
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

skydns12.otsuka-office365.jp
skydns11.otsuka-office365.jp
skydns13.otsuka-office365.jp

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:157.205.174.157 include:spf.mta.hdems.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict 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

2 records
  • ZOOM_verify_5TEMHjNQz9M8wikrJje6Mm
  • SPFv=spf1 include:spf.protection.outlook.com ip4:157.205.174.157 include:spf.mta.hdems.com -all
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