yamanashi.ac.jp

Valid Email Server
Domain Lookup › yamanashi.ac.jp

Domain Overview

DNS: ✓ 3h ago Checker: ✓ 3h ago
yamanashi.ac.jp
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-23 21:29:21 UTC · ↺ Refresh

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MX Hostnames

  • mta-s.yamanashi.ac.jp
  • mta.yamanashi.ac.jp

MX Priorities

  • mta.yamanashi.ac.jp: 50
  • mta-s.yamanashi.ac.jp: 10

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 133.23.2.5 ↩ mta.yamanashi.ac.jp
  • 133.23.2.7 ↩ mta-s.yamanashi.ac.jp

SOA Record

Raw SOA ns.yamanashi.ac.jp sysadmin.yamanashi.ac.jp 2022080549 10800 3600 604800 38400
Primary NS (mname)
ns.yamanashi.ac.jp
Admin Email (rname)
sysadmin@yamanashi.ac.jp
Serial
2022080549
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
38400s

Nameservers (NS)

ns.yamanashi.ac.jp
ns2.yamanashi.ac.jp

SPF Record

✓ Strict (-all)
v=spf1 +ip4:133.23.0.0/16 +ip4:133.217.192.19/32 +ip4:133.217.192.20/32 +ip4:133.217.192.21/32 +ip4:133.217.192.22/32 +ip4:133.242.51.37/32 +include:outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

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

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=BBOewiU3XIqknIK9qGD84JvbqHs-z7RnMqjV9ozgqgo
  • SPFv=spf1 +ip4:133.23.0.0/16 +ip4:133.217.192.19/32 +ip4:133.217.192.20/32 +ip4:133.217.192.21/32 +ip4:133.217.192.22/32 +ip4:133.242.51.37/32 +include:outlook.com -all
  • MS=ms78599334
  • cisco-ci-domain-verification=26be95b3b99db8046b204ecdffb977d7c946d7bc0e9118d58b3434eb62041836
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