earth.sinica.edu.tw

Valid Email Server
Domain Lookup › earth.sinica.edu.tw
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
earth.sinica.edu.tw
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-10-30 03:33:12 UTC · ↺ Refresh

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MX Hostnames

  • ALT1.ASPMX.L.GOOGLE.com
  • ALT3.ASPMX.L.GOOGLE.com
  • ASPMX.L.GOOGLE.com
  • ALT2.ASPMX.L.GOOGLE.com
  • ALT4.ASPMX.L.GOOGLE.com

MX Priorities

  • alt2.aspmx.l.google.com: 5
  • aspmx.l.google.com: 1
  • alt4.aspmx.l.google.com: 10
  • alt3.aspmx.l.google.com: 10
  • alt1.aspmx.l.google.com: 5

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 172.253.116.27 ↩ dj-in-f27.1e100.net
  • 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
  • 172.253.122.27 ↩ bh-in-f27.1e100.net
  • 2607:f8b0:4004:c17::1b ↩ bl-in-f27.1e100.net
  • 172.253.157.27 ↩ yubrupd-in-f27.1e100.net
  • 2a00:1450:400c:c23::1a ↩ yubrupd-in-f26.1e100.net
  • 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
  • 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
  • 192.178.234.26 ↩ ncsclj-in-f26.1e100.net
  • 2800:3f0:4003:c14::1b (no PTR)

SOA Record

Raw SOA a.ns.earth.sinica.edu.tw hostmaster.sinica.edu.tw 456 10800 3600 2419200 300
Primary NS (mname)
a.ns.earth.sinica.edu.tw
Admin Email (rname)
hostmaster@sinica.edu.tw
Serial
456
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
300s

Nameservers (NS)

b.ns.earth.sinica.edu.tw
a.ns.earth.sinica.edu.tw

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:140.109.0.0/16 include:_spf.google.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected], mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected], mailto:[email protected]

DKIM Selectors

✓ 1 found
google._domainkey
✓ Public key: 216 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

6 records
  • SPFv=spf1 ip4:140.109.0.0/16 include:_spf.google.com ~all
  • Public-CA-domain-verification=8A2AA2FF66EF7C149F73906828EC2DA5
  • TBnz792MAmQzipLfsIUaj4n-wimxf5vX9Cj6yMiXbKg
  • lix_iML-8Zkuon7bVCW2ZcnmVQfzdmhmoLcDKfmTWJs
  • dZq4ouxMN8HgK1C8bjMkTj4M7NmHNtOzNQL-28V3iCI
  • -1EQ4RjgEnJzImGnmhYVqy8nQu5PkFXSYiaA5ljMRXs
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