b.co.uk

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

Domain Overview

DNS: ⚡ live Checker: ⚡ live
b.co.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-05-21 07:08:29 UTC · ↺ Refresh

MX Hostnames

  • b-co-uk.mail.protection.outlook.com

MX Priorities

No priority data.

A / AAAA Records

  • 198.202.211.1

Mail Server IPs

No IPs resolved.

SOA Record

No SOA record found.

Nameservers (NS)

josh.ns.cloudflare.com
elinore.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 include:_spf.zivver.com ip4:161.38.206.171 ip4:82.71.195.217 include:spf.protection.outlook.com ip4:51.141.5.228 ip4:51.140.37.132 include:145673460.spf02.hubspotemail.net include:_spf.salesforce.com include:spf.ssmx.net -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]; pct=100;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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

17 records
  • openai-domain-verification=dv-ewcBSEkIj51ZLM8Sq0CMixXn
  • atlassian-domain-verification=TIE8SE9/h1HlCGAFCohKLjmraEAiYIpLY2MaPj6kTSAYz57zofNUnQ7b2I1st11c
  • lq53tr72nt7j6pkc20ruq25kja
  • 1password-site-verification=JCTLEOKBABFC5BDNTW4DUQIBS4
  • atlassian-sending-domain-verification=ac7cff03-41ed-46f8-8579-5cec5ce68061
  • 4GG+jJtUxVIiKneqwxmkRxxMoURATHk7aiX7bi91i6c=
  • t7st48a24gf36b198rjmno0e7l
  • DKIMv=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAmZ6AM23Wv9U3wtTzECAmnhEcuTK48JBEFlCE139dyAyDLhudOmgTa8sXDid3+Xl0L0igE+ePuWzinciRl3xQDEyjqQXODIRcW3MKXscSQOweJxG8Uf/fXIBEHEQK48JrhdTQeRDUWj2ctSW3XsIZSekH88+V4w6qM8HlDvkljQ+QL+o2IFCMrTqbWyexxPbYrmsEtf9bKayvaJnUrbOWCx5q+DwRFHKrDVQo74vRugZwy0MSGmHeLjBeUmS77TVGvSwnNUsOab0YTeklp4e6aZ+85U9xPhbtCL4mwRsI4c1TLMmC8A0f9WTQaflNmJddGorWP4UGCOSe45FQS1uu1wIDAQAB;
  • bcpublicsiteuk-bcpublicsite2.azurewebsites.net
  • google-site-verification=x3wQF7G2Po6WI_ZHvYsWiw46szp05rUvmCAt-RWZ_cU
  • proxy-ssl.webflow.com
  • SPFv=spf1 include:_spf.zivver.com ip4:161.38.206.171 ip4:82.71.195.217 include:spf.protection.outlook.com ip4:51.141.5.228 ip4:51.140.37.132 include:145673460.spf02.hubspotemail.net include:_spf.salesforce.com include:spf.ssmx.net -all
  • kc6ls5j8jfhoceqpde076lvce4
  • workplace-domain-verification=ISC4ObzJ5WvJhxoZtD0tuIEmSxgOAY
  • iv8umu3btrpf0b676q34s81pbe
  • /i4usn5Nz2qRd5EX5BZCDO46HT+CHPD/Ha5SmAeLozRYJAiXV7Qeo4w3pmL3YzeY4YuRRHnaOrwkrSBwtkgXqg==
  • 732s3o7tfe654u5029k95o5s3h
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