arqit.uk

Valid Email Server
Domain Lookup › arqit.uk
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
arqit.uk
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-09-04 18:24:44 UTC · ↺ Refresh

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MX Hostnames

  • eu-smtp-inbound-1.mimecast.com
  • eu-smtp-inbound-2.mimecast.com

MX Priorities

  • eu-smtp-inbound-1.mimecast.com: 10
  • eu-smtp-inbound-2.mimecast.com: 20

A / AAAA Records

  • 104.26.2.106 (no PTR)
  • 172.67.69.56 (no PTR)
  • 104.26.3.106 (no PTR)
  • 2606:4700:20::ac43:4538 (no PTR)
  • 2606:4700:20::681a:36a
  • 2606:4700:20::681a:26a

Mail Server IPs

  • 91.220.42.201 ↩ eu-smtp-inbound-1.mimecast.com
  • 195.130.217.201 ↩ eu-smtp-inbound-2.mimecast.com
  • 195.130.217.211 ↩ eu-smtp-inbound-2.mimecast.com
  • 91.220.42.211 ↩ eu-smtp-inbound-1.mimecast.com
  • 195.130.217.241 ↩ eu-smtp-inbound-1.mimecast.com
  • 91.220.42.241 ↩ eu-smtp-inbound-1.mimecast.com

SOA Record

Raw SOA gemma.ns.cloudflare.com dns.cloudflare.com 2413322497 10000 2400 604800 1800
Primary NS (mname)
gemma.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2413322497
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

quentin.ns.cloudflare.com
gemma.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_u.arqit.uk._spf.smart.ondmarc.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; pct=100; sp=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=r; aspf=r; fo=1; rf=afrf; ri=3600
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject

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

17 records
  • 0ed1fe018afbb2055d62cc45bba2e6d60e5a363a57
  • MS=ms74590146
  • anthropic-domain-verification-1r9kdg=JxRmnUQAjN3UGHQaEnVljIClA
  • apple-domain-verification=CJeWJAYCfCQF3gf8
  • asv=5360fccfd2da7fd331746b3a7b54244a
  • atlassian-domain-verification=jQtPQU5BDaPRhlkqdDaIYIxyEVRgrUQJccAYQ0ugbMXrqoXYKwRnHhBDfQtE0FoH
  • atlassian-sending-domain-verification=17b64523-a7e1-410f-8204-53c6f21426f7
  • docusign=05a1811d-6231-4ad9-b72b-0b9451619568
  • google-site-verification=HD747X-DOfoOC4VySoh171A_qCOuBPW5YCVRBRMGwDw
  • google-site-verification=lWi0ZJJIU3IujDqFv_IvL7anBC4CGe3sJqUS0P-O9-4
  • google-site-verification=oUD3J0LTdeDI2JtmmZVDkn3uGmQ4WMyaUSzOXANh0rw
  • miro-verification=b322dbf1a63b95610cddea73d30f4d7ba1356bc0
  • onetrust-domain-verification=92983295d437488bb0c20a98251e3abd
  • openai-domain-verification=dv-BDBZMGFdPwW60KKiC2S6ZB6n
  • tailscale-verification=Nb5G5PLPSj4N19zbnGjJ3aRxtCFjUPFjgXPXey6M2fR8
  • SPFv=spf1 include:_u.arqit.uk._spf.smart.ondmarc.com ~all
  • 0ed1fe018ad6930b18c8934e6583df9870266b6fd9
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