zuker.co.uk

Valid Email Server
Domain Lookup › zuker.co.uk

Domain Overview

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

Checked via [email protected] · 2026-03-20 22:54:58 UTC · ↺ Refresh

MX Hostnames

  • mx1.larksuite.com
  • mx3.larksuite.com
  • mx2.larksuite.com

MX Priorities

  • mx3.larksuite.com: 30
  • mx2.larksuite.com: 20
  • mx1.larksuite.com: 10

A / AAAA Records

  • 18.170.135.52 ↩ ec2-18-170-135-52.eu-west-2.compute.amazonaws.com

Mail Server IPs

  • 101.126.58.223 (no PTR)
  • 18.139.153.173 ↩ ec2-18-139-153-173.ap-southeast-1.compute.amazonaws.com
  • 122.14.230.154 (no PTR)

SOA Record

Raw SOA ns1087.ui-dns.biz hostmaster.1and1.com 2017070320 28800 7200 604800 300
Primary NS (mname)
ns1087.ui-dns.biz
Admin Email (rname)
hostmaster@1and1.com
Serial
2017070320
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1087.ui-dns.org
ns1087.ui-dns.biz
ns1087.ui-dns.de
ns1087.ui-dns.com

SPF Record

✓ Soft Fail (~all)
v=spf1 +include:spf.onlarksuite.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

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

1 record
  • SPFv=spf1 +include:spf.onlarksuite.com ~all
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