portsmouth-college.ac.uk

Valid Email Server
Domain Lookup › portsmouth-college.ac.uk

Domain Overview

DNS: ✓ just now Checker: ✓ just now
portsmouth-college.ac.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-06-01 23:54:15 UTC · ↺ Refresh

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MX Hostnames

  • portsmouthcollege-ac-uk02e.mail.protection.outlook.com

MX Priorities

  • portsmouthcollege-ac-uk02e.mail.protection.outlook.com: 0

A / AAAA Records

  • 162.159.140.127 (no PTR)

Mail Server IPs

  • 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
  • 52.101.73.24 ↩ mail-as8pr05cu00300.inbound.protection.outlook.com
  • 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
  • 52.101.68.16 ↩ mail-db4pr02cu00400.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::5 ↩ mail-am1pr04cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com

SOA Record

Raw SOA ns11.ja.net hostmaster.ns11.ja.net 2025013102 43200 3600 3600000 3600
Primary NS (mname)
ns11.ja.net
Admin Email (rname)
hostmaster@ns11.ja.net
Serial
2025013102
Refresh
43200s
Retry
3600s
Expire
3600000s
Minimum TTL
3600s

Nameservers (NS)

ns11.ja.net
ns12.ja.net
ns10.ja.net

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ 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

1 record
  • SPFv=spf1 include:spf.protection.outlook.com -all
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