u.nus.edu

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

Domain Overview

DNS: ⚡ live Checker: ⚡ live
u.nus.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-07-27 20:00:31 UTC · ↺ Refresh

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MX Hostnames

  • u-nus-edu.mail.protection.outlook.com

MX Priorities

  • u-nus-edu.mail.protection.outlook.com: 0

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 52.101.137.0 ↩ mail-sg2pr03cu00500.inbound.protection.outlook.com
  • 52.101.124.117 ↩ mail-tydpr03cu00105.inbound.protection.outlook.com
  • 52.101.157.80 ↩ mail-os8pr02cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:cc1a::8 ↩ mail-tydpr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:cc09:: ↩ mail-sg2pr03cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:cc1f::4 ↩ mail-os8pr02cu00104.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.nus.edu.sg ccenet.nus.edu.sg 2018081879 3600 1800 604800 600
Primary NS (mname)
ns1.nus.edu.sg
Admin Email (rname)
ccenet@nus.edu.sg
Serial
2018081879
Refresh
3600s
Retry
1800s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns2.nus.edu.sg
ns1.nus.edu.sg

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.tmes.trendmicro.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1;p=reject;rua=mailto:[email protected],mailto:[email protected];ruf=mailto:[email protected];fo=1
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],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

7 records
  • tmes=a8c0cde55143768635332878abd7bab3
  • i4JGYpjaVZ8MoCBJRA/KBHPeSvyg6hbvuYdB0fA8DgE02dGCdPQ13JGJ7Uhj7rgm/lTiedRpiyFtboZRKiURrw==
  • MS=ms35751026
  • SPFv=spf1 include:spf.protection.outlook.com include:spf.tmes.trendmicro.com -all
  • atlassian-domain-verification=3dXaB14bm126lrtqwwqFyhRMUu2CAPieUN03cgrluB6acyH3TGTbL7d3YGoFrdCt
  • openai-domain-verification=dv-gndSigWd4FigSHBexUdhg5jG
  • adobe-idp-site-verification=1ecf315ec4bda75651a6c1f54fa911bc4ba3606fe4f6a5a1550c4289599d2cf4
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