rdg.ac.uk

Valid Email Server
Domain Lookup › rdg.ac.uk

Domain Overview

DNS: ✓ 20d ago Checker: ✓ 20d ago
rdg.ac.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-05-21 03:10:28 UTC · ↺ Refresh

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MX Hostnames

  • rdg-ac-uk.mail.protection.outlook.com

MX Priorities

  • rdg-ac-uk.mail.protection.outlook.com: 0

A / AAAA Records

  • 134.225.0.151 (no PTR)
  • 2001:630:53:101::97 (no PTR)

Mail Server IPs

  • 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
  • 52.101.73.26 ↩ mail-as9pr05cu01302.inbound.protection.outlook.com
  • 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
  • 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com
  • 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::8 ↩ mail-db5pr02cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com

SOA Record

Raw SOA ns11.ja.net hostmaster.ns11.ja.net 2023280668 43200 3600 3600000 3600
Primary NS (mname)
ns11.ja.net
Admin Email (rname)
hostmaster@ns11.ja.net
Serial
2023280668
Refresh
43200s
Retry
3600s
Expire
3600000s
Minimum TTL
3600s

Nameservers (NS)

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

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf-lists.reading.ac.uk ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected],mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 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

6 records
  • The University of Reading, UK
  • 4AF464D1-2041-4D29-94D7-A15F999FF25F
  • SPFv=spf1 include:_spf-lists.reading.ac.uk ~all
  • MS=ms59680338
  • MS=A251908407B0434E568B734991E99D2ED891E8AA
  • 95B63A1BE601D81CEC8DA6EA7F6DCB005495F4C0516408AD624E33403A9578DE
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