ic.ac.uk

Valid Email Server

Domain Overview

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

Checked via [email protected] · 2026-05-21 07:09:10 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 155.198.63.21 (no PTR)
  • 146.179.32.37 ↩ icads47.ic.ac.uk
  • 155.198.30.98
  • 146.179.33.19
  • 155.198.30.55
  • 155.198.30.71
  • 146.179.32.12

Mail Server IPs

  • 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
  • 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
  • 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
  • 52.101.73.4 ↩ mail-am0pr83cu00404.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com

SOA Record

Raw SOA ns0.ic.ac.uk hostmaster.ic.ac.uk 2013295395 2700 1800 3600000 3600
Primary NS (mname)
ns0.ic.ac.uk
Admin Email (rname)
hostmaster@ic.ac.uk
Serial
2013295395
Refresh
2700s
Retry
1800s
Expire
3600000s
Minimum TTL
3600s

Nameservers (NS)

auth0.dns.cam.ac.uk
ns0.ic.ac.uk
ns1.ic.ac.uk
ns2.ic.ac.uk

SPF Record

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

DMARC Record

✗ p=none
v=DMARC1; p=none; sp=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]
↳ Subdomain policy: none

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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

9 records
  • access-domain-verification=6a44df5d26c585e4eb589c3037362087e7eb4f27d1f760df73ed6118a7d13cb3
  • atlassian-domain-verification=ATxzg4VKmcvcwvue9AxKCTcnkkld5VpodrJb73U8t5DkZQN8b8saysxyKv5uQI/4
  • _n4u2r1q92sbrfhi4yw2pt2xhyyzz39i
  • 8EPXmL39AtuM4AzorZWkeT34xcLvQhnXdl1bWFIZZfmArx3YinDdA1MnJRWq+m+rtJwgxwbrJUidKpwiJB3CvQ==
  • SPFv=spf1 include:_spf.imperial.ac.uk ~all
  • QuoVadis=2c177ef2-3f9b-4e3a-a5bc-9138f95d4089
  • box-domain-verification=d9a6de600ab54606d1a29e06b6f0c15175f40edec34a789899bdf76033229bfd
  • 2fa15ee8-2285-4496-bbfd-190dda3d1b98.100718
  • pbVVNAqLdNQQqtA1/1Ebp6JyY/P4TTRz2GTxVvg3zeZGBEb4PDvkT11a81xc++ZWZAI6j+2MWRakQxkkXOQzSA==
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