core-marketing.co.uk

Valid Email Server
Domain Lookup › core-marketing.co.uk

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
core-marketing.co.uk
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-23 12:35:14 UTC · ↺ Refresh

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MX Hostnames

  • d210501.b.ess.uk.barracudanetworks.com
  • d210501.a.ess.uk.barracudanetworks.com

MX Priorities

  • d210501.b.ess.uk.barracudanetworks.com: 20
  • d210501.a.ess.uk.barracudanetworks.com: 10

A / AAAA Records

  • 104.21.52.103 (no PTR)
  • 172.67.198.19 (no PTR)
  • 2606:4700:3033::ac43:c613 (no PTR)
  • 2606:4700:3035::6815:3467 (no PTR)

Mail Server IPs

  • 18.133.136.186 ↩ mail.ess.uk.barracuda.com
  • 18.133.136.188 ↩ mail.ess.uk.barracuda.com
  • 18.133.136.187 ↩ mail.ess.uk.barracuda.com

SOA Record

Raw SOA jaime.ns.cloudflare.com dns.cloudflare.com 2398815915 10000 2400 604800 1800
Primary NS (mname)
jaime.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398815915
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

jaime.ns.cloudflare.com
vida.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 mx ip4:85.13.230.0/26 ip4:85.13.232.32/27 ip4:85.13.235.0/25 ip4:94.185.156.41 ip4:89.213.242.234 ip4:86.53.239.147 a include:cmail1.com a:dispatch-eu.ppe-hosted.com include:spf.ess.uk.barracudanetworks.com include:servers.mcsv.net ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

DKIM Selectors

✓ 1 found
k1._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: k1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

6 records
  • apple-domain-verification=-YZLDR3rZpumC5s2bqy7S5Uz_cTr_q6cKtFHuqtpPQo
  • dropbox-domain-verification=xm5dkjexav6b
  • google-site-verification=30DNaomCmHaKeT5G1rmGzdDKnbYjfmwiWprD6Zsanys
  • google-site-verification=d5Gp7pN5Y7zoGXkKy73h1LUJ6Wcx7vS4XK8XM2D4igc
  • SPFv=spf1 mx ip4:85.13.230.0/26 ip4:85.13.232.32/27 ip4:85.13.235.0/25 ip4:94.185.156.41 ip4:89.213.242.234 ip4:86.53.239.147 a include:cmail1.com a:dispatch-eu.ppe-hosted.com include:spf.ess.uk.barracudanetworks.com include:servers.mcsv.net ~all
  • MS=ms55223573
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