calber.co.uk

Valid Email Server
Domain Lookup › calber.co.uk

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
calber.co.uk
Yes
✓ Yes
Symantec
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-28 18:40:17 UTC · ↺ Refresh

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MX Hostnames

  • cluster5.eu.messagelabs.com
  • cluster5a.eu.messagelabs.com

MX Priorities

  • cluster5.eu.messagelabs.com: 10
  • cluster5a.eu.messagelabs.com: 20

A / AAAA Records

  • 46.101.7.150 ↩ 881727.cloudwaysapps.com

Mail Server IPs

  • 195.245.230.200 ↩ mail858.messagelabs.com
  • 195.245.230.201 ↩ mail859.messagelabs.com
  • 85.158.142.210 ↩ mail834.messagelabs.com
  • 85.158.142.214 ↩ mail838.messagelabs.com
  • 195.245.231.69 ↩ mail874.messagelabs.com
  • 195.245.231.72 ↩ mail876.messagelabs.com
  • 195.245.231.75 ↩ mail879.messagelabs.com
  • 85.158.142.215 ↩ mail839.messagelabs.com
  • 34.91.159.228 ↩ 228.159.91.34.bc.googleusercontent.com

SOA Record

Raw SOA ns-uk.1and1-dns.co.uk hostmaster.1and1.com 2016041423 28800 7200 604800 300
Primary NS (mname)
ns-uk.1and1-dns.co.uk
Admin Email (rname)
hostmaster@1and1.com
Serial
2016041423
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns-uk.1and1-dns.biz
ns-uk.1and1-dns.org
ns-uk.1and1-dns.com
ns-uk.1and1-dns.co.uk

SPF Record

✓ Strict (-all)
v=spf1 include:spf.messagelabs.com include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict 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

✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 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

3 records
  • v=verifydomain MS=5107503
  • SPFv=spf1 include:spf.messagelabs.com include:spf.protection.outlook.com -all
  • MS=ms16860498
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