lib.cam.ac.uk

Valid Email Server
Domain Lookup › lib.cam.ac.uk

Domain Overview

DNS: ✓ 3d ago Checker: ✓ 3d ago
lib.cam.ac.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-05-18 06:39:20 UTC · ↺ Refresh

MX Hostnames

  • lib-cam-ac-uk.mail.protection.outlook.com

MX Priorities

  • lib-cam-ac-uk.mail.protection.outlook.com: 0

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
  • 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
  • 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
  • 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::a ↩ mail-du0pr03cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com

SOA Record

Raw SOA primary.dns.cam.ac.uk hostmaster.cam.ac.uk 796146946 1200 180 1209600 3600
Primary NS (mname)
primary.dns.cam.ac.uk
Admin Email (rname)
hostmaster@cam.ac.uk
Serial
796146946
Refresh
1200s
Retry
180s
Expire
1209600s
Minimum TTL
3600s

Nameservers (NS)

auth1.dns.cam.ac.uk
auth0.dns.cam.ac.uk

SPF Record

✓ Strict (-all)
v=spf1 include:_spf.cam.ac.uk include:spf.protection.outlook.com include:amazonses.com include:spf-ap.exlibrisgroup.com include:spf-eu.exlibrisgroup.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

3 records
  • google-site-verification=nnEPvIv-nB_q0ZQ-fqLcVIba819CFSiW7tjj0eLfwpg
  • SPFv=spf1 include:_spf.cam.ac.uk include:spf.protection.outlook.com include:amazonses.com include:spf-ap.exlibrisgroup.com include:spf-eu.exlibrisgroup.com -all
  • atlassian-domain-verification=h4R2f7shrlmDWF2wT8vFHF6fZPajYxRmSfy0OwpoLCukhd75Ly++3oRyZ6eEjg0I
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